Connor Lacey's Adventures of Pokémon Origins

Connor Lacey's Adventures of Pokémon Origins is the 1st YIFM/Pokémon crossover made by Connor Lacey. It will appear on YouTube in the near future.

Plot
Similar to Pokémon Red and Green, this episode begins with Professor Oak introducing himself as well as the world of Pokémon. He explains that the world is inhabited by creatures known as Pokémon and that people use them as pets and for fights. After releasing an Eevee from its Poké Ball, he invites the audience to the world of Pokémon.

The scene changes to a battle between a Gengar and Nidorino that is being watched by Red in his room. His mother calls up the stairs to him and tells him that Professor Oak wants to see him in his lab. Excited by this, Red rushes out of his room, and in his haste, falls down the stairs. He quickly gets back up, however, and runs over to Professor Oak's Laboratory. In front of the lab, Red meets up with Blue, Professor Oak's grandson and Red's rival, who also was called down to the lab. They race in as Professor Oak greets them. He hands each of them a Pokédex, a high-tech encyclopedia of Pokémon, which he has been working on. He asks them both to fulfill his dream of making a complete guide on all Pokémon.

In addition to doing this, Professor Oak allows the boys to pick one of the three starter Pokémon: Charmander, Squirtle, or Bulbasaur. Blue lets Red pick first. Though Professor Oak advises them both to think carefully before they choose, Red picks Charmander almost immediately. He explains that his father named him Red, and cites it as the reason he wanted his first Pokémon to be a Fire-type. Professor Oak asks Blue if he is going to pick Squirtle for similar reasons, and while Blue denies that he would pick his Pokémon for such a ridiculous reason, he chooses Squirtle anyway, solely because of its advantage over Red's selection. Professor Oak asks if they would like to nickname either of their Pokémon, but they both decline. Blue starts to challenge Red to a battle, but then changes his mind, teasing that he wants his first battle to be memorable instead of against a novice like Red. This prompts Red to angrily argue that Blue is just as much a beginner as he is, but Blue argues that he has greater ambitions than Red. Blue goes on to explain that he wants to be the greatest Pokémon Trainer in the world and exit the laboratory. Red begins his journey shortly afterward.

Walking down the road, Red encounters a Pidgey. He sends Charmander out to battle it, but Pidgey overwhelms them both with a Gust attack, preventing Charmander from using Ember as ordered, and also flies off, evading the Poké Ball Red throws at it. Red sits down with Charmander and looks up Pidgey in his Pokédex, only to discover that the Pokédex does not register full data on a Pokémon unless he succeeds in catching it. However, his next battle against a Rattata is more successful, and he catches the Rattata. This is shortly followed by his catching a Spearow, a Caterpie, and a different Pidgey. The scene moves to him battling a Youngster Trainer in a forest. The Youngster sends out a Nidoran♀, and after Red states that he has never seen one before, he sends out Charmander, who knocks the opponent out in one hit. After attacking, Red tries to catch the Nidoran♀, but the Poké Ball is rejected. The Youngster accuses Red of trying to steal his Pokémon and calls him a thief, but Red attempts to explain the misunderstanding, and asks where he can catch his own Nidoran♀, and the Youngster points him in the right direction.

Red makes it close to Viridian City, where he runs into Blue. Blue challenges Red to a battle, and Red explains that his journey is not to make his Pokémon stronger, but rather just to complete the Pokédex. Blue explains that in order to complete the Pokédex, Red will have to battle against strong Pokémon, and then teases him about having a good excuse to wimp out of battles. This angers Red, and Blue states his opinion that Red is not confident that he can win, and adds that he will not lose to Red no matter what. This convinces Red to accept the challenge, and the battle begins, Blue sending out Squirtle, and Red sending out Charmander. Unknown to either of them, their battle is being watched from behind several trees by someone. Charmander starts by using Growl, which does not seem to faze Squirtle. Blue orders a Tackleattack, and Red tries to counter with Ember, but Squirtle dodges the move before slamming into Charmander. Red tells Charmander to use Scratch, but Squirtle pulls its head into its shell to dodge, and Charmander's claws strike the shell uselessly. Red orders another Scratch, but Blue orders another Tackle, which Squirtle is able to pull off before Charmander can react, sending it flying back again.

As Charmander struggles to get back to its feet, Red calls for an Ember, and Blue orders Squirtle to use Bubble. The attacks collide, but Bubble overpowers the Fire-type move. Blue asks Red if that's all he's got, and orders Squirtle to use Bubble again. It fires off multiple Bubble attacks, which Charmander manages to dodge. Red, however, tells Charmander to use Ember instead of running away, and as Charmander tries to comply with this, it ends up taking a Bubble attack. Before it can recover, Squirtle pins it to the ground, and on Blue's orders, uses Bite. As Charmander thrashes about, trying to get away, Red notices the flame on its tail growing smaller, and hastily withdraws Charmander to its Poké Ball. Blue withdraws Squirtle, and laughs about how weak Red was. He tells Red he might as well just go back to Pallet Town, and that he has no hope of completing the Pokédex.

Distressed by his defeat, Red sits down next to a lake and thinks to himself that he and Blue should be at the same level, as they both started their Pokémon journey at the same time. Brock, who had been watching Red's battle with Blue the entire time, states that Red is wrong, and that Blue was the more experienced one. Red asks his name, but instead of answering, Brock asks if Red understands the types and characteristics of his Pokémon, and then explains to Red that he and Charmander are clearly not in sync. Red claims that to be a lie, but Brock goes on, pointing out that Squirtle responded quickly to Blue's instructions and dodged attacks using its own judgment. He explains that Pokémon and their Trainers are connected, that Squirtle clearly recognized and trusted its Trainer's power, and that Pokémon will not connect with Trainers who have no power. As Brock says that a Pokémon's strength is proportional to its Trainer's power, Red nods in understanding, and then starts to walk away. Brock asks what he's doing, and Red explains that he intends to challenge everyone with Pokémon to battles. At this, Brock reminds Red how weak and hurt his Charmander already was, and urges him to take it to the Pokémon Center first. Then, he tells Red that if he wants to learn the basics of battle, that he should visit the Gym Leaders, explaining that they are experienced with Pokémon battles, and that Red could learn a lot from them, but also warns Red that they are only willing to battle Trainers who are willing to learn. He walks away, telling Red to think about what battling Pokémon is really all about.

Red goes to the Viridian City Pokémon Center and gets his Pokémon healed. While the nurse is looking after them, he calls Professor Oak, who reminds him that if he catches a Pokémon while having six on hand, it would get sent to the PC. Then, Professor Oak asks what is wrong, stating that Red sounds a little down, but Red assures him that it is nothing. Professor Oak then reminds Red that his is a long journey, and to not push himself too hard. After the call, the nurse calls Red over and hands him back his Poké Balls, confirming that his Pokémon are all fighting fit. Later on, Red arrives in Pewter City, and in the Pewter City museum, Red overhears two people talking about the Pewter City Gym Leader, Brock. He decides to head to Pewter Gym and challenge the Gym Leader. When Red gets there, however, two people tell Red that he is light years from facing Brock, an opinion only reinforced for them when Red reveals he had only been a Trainer for five days. Then, from behind, Brock tells them that he invited Red, to their initial disbelief. Red is initially shocked that the man he talked to back near Viridian City was the Pewter City Gym Leader. Brock then asks Red if he has an answer to the question that was asked earlier. Red says that he does not, but then explains that that is because he did not have an answer for why he came to the Gym. Intrigued by this response, Brock agrees to battle Red.

As the two enter the main area of the Gym, Brock asks Red if he has any badges. Upon Red's confirming that he has none yet, Brock goes over to a wall, which opens up, revealing a tray containing six Poké Balls. He takes two of them, and tells Red that he will battle him using two Pokémon, which seems to surprise Red. Brock then throws one of the balls, explaining that his specialty is battling with Rock-type Pokémon as a Geodude comes out. Red responds by sending out Charmander, and the battle begins. However, Charmander's Ember and Scratch attacks do next to nothing to Geodude who, to Red's confusion, has yet to fight back. He decides to wait to see what Geodude may do, which proves to be a mistake, as Geodude's Tackle causes major damage. Red orders several Scratch attacks, all of which do almost nothing to Geodude, and Brock claims that Red doesn't seem to have learned anything. He recalls asking Red whether he knew anything about the types and characteristics of his Pokémon, and explains that Fire-types are weak to Rock, and that only using Charmander puts him at a disadvantage against Rock-types. Red does not understand what Brock is getting at, so he goes on to explain that Red is allowed to switch Pokémon in a battle. Red withdraws Charmander and sends out a Nidoran♂, who knocks out Geodude with Double Kick.

Brock withdraws Geodude, and sends out his second Pokémon, an Onix. Red is surprised that he is facing another Rock-type, and Brock reminds him that his specialty is Rock-types. Red orders a Double Kick, and Brock calls for Bide. He then explains that when using Bide Onix cannot attack until it has been attacked twice. Red is surprised by this, and voices the possibility of Onix being defeated with two attacks. Brock replies that he believes in Onix, and is confident that two attacks would not be sufficient to take it out. Red orders another Double Kick, but it is not enough to knock out Onix. Onix then unleashes Bide, and knocks Nidoran out in one blow. Brock explains more about Bide, informing Red that it allows Onix to deal twice the damage it has taken. Red sends out Spearow, but Onix knocks it out almost immediately. Red withdraws Spearow and sends out Rattata, only to have it meet the same fate. He realizes that Onix is too fast, and sends out a Metapod, ordering it to use String Shot. Metapod ties Onix up with String Shot, but Brock bellows that the attack will not work, and Onix manages to snap off the strings. The two people from the entrance of the Gym remark on how serious Brock is getting. Red calls for another String Shot, but Onix uses Tackle and knocks Metapod out.

Red withdraws Metapod and then, claiming to only have one more Pokémon, sends Charmander back out. By this point, both Brock and Red are starting to pant, and Brock asks Red if he is starting to understand what battling is about. Red thinks about this, noticing that he is getting exhausted and that he does not know why, and that he feels as though he is also taking damage. And then it occurs to him that Pokémon are not tools for battle, but rather partners, that he and his Pokémon are battling together. Brock gives a small smile as Red explains what he has realized, and then points out that Onix and Charmander are almost out of HP, and that the next attack would decide the battle. He orders Onix to use Tackle, and Red tells Charmander to use Scratch. They attack simultaneously, their Speed apparently identical; Onix faints. Though the two people are confused about this, they notice something floating to the ground from where Onix was when Brock withdrew it--a single strand of String Shot. Brock then reveals what happened: he thought that Onix had torn off all of the strings, but it had in fact missed one, which was sufficient to make its attack just a split second too late. He gives Red a Boulder Badge and TM34 (Bide). Later on, after Red leaves, one of the people watching the battle asks Brock why he accepted Red's challenge, and Brock reveals that Red's response to his question had intrigued him.

The scene changes to Professor Oak's lab. One of Professor Oak's assistants asks him why he chose Red. He replies that although Red is clumsy, ever since he was a young boy he has hated to lose, and that Red is honest and will learn from others around him and grow stronger. He then says that he hopes Blue will grow along with Red.

After defeating Brock at the Pewter Gym and winning a Boulder Badge, Red continues his journey to complete the Pokédex. He purchases a Magikarp from the Magikarp salesman on Route 4; battles a Fossil-hogging Super Nerd in Mt. Moon; encounters a crime syndicate called Team Rocket and recovers the TM for Dig, which they stole from a man in Cerulean City; defeats the Cerulean Gym Leader Misty, winning a Cascade Badge; evolves his Charmander into Charmeleon; receives an Old Rod from the Vermilion Fishing Guru; cures the captain of the S.S. Anne of his seasickness and is rewarded with HM01 (Cut); defeats the Vermilion City Gym Leader Lt. Surge and wins a Thunder Badge; receives a Bike Voucher from the Pokémon Fan Club Chairman; and rides his new bicycle through Rock Tunnel to Lavender Town.

After arriving in Lavender Town and healing his Pokémon at the Pokémon Center, Red overhears two people saying that the Pokémon Tower, the town's Pokémon graveyard, is haunted. Red asks if this is true; they insist it is. One of the people, a woman, asks Red if he believes in ghosts; he says that he does not think they exist. The woman says that the white hand on his shoulder must be fake too, then; Red turns around and sees nothing; when he turns back around, he finds that both people are gone without a trace.

The Pokémon Center Nurse asks Red if he plans to visit the Pokémon Tower; he says yes, and she says that he should go to the Pokémon House first. When Red arrives at the house, he is greeted by one of the volunteers there, Reina. She shows him around, and she explains that the house was founded by an elderly man named Mr. Fujiand takes in orphaned and abandoned Pokémon to take care of them; Red comments that all of the Pokémon in the house look happy - all except an angry baby Cubone. Reina explains that the Cubone only gets along with Mr. Fuji but is hostile toward anyone else. Red asks why, to which Reina responds it is Team Rocket's fault.

She explains Cubone's story to Red: A trio of Team Rocket Grunts was poaching Pokémon near town, and captured a Mankey, a Raticate, a Sandshrew, and a Sandslash. One Grunt noticed Cubone attempting to run away, and the others almost netted it, in hopes of selling it for a high price; however, an unknown Pokémon tackled them to protect it. The Pokémon was soon revealed to be Cubone's mother, a Marowak, who told her child to run. Cubone was hesitant at first, but soon ran off. One of the Grunts, infuriated by Marowak's intervention, pulled out a stun baton and beat her to death. The orphaned Cubone was found by Mr. Fuji and given a loving home.

Red soon finds out that Team Rocket has taken over Pokémon Tower and made it their base. Mr. Fuji had gone to the tower to tell them to leave days ago, but had not returned. Red volunteers to find him, and says that he is more than capable due to his having three badges. Blue, however, overhears the whole conversation and decides to do the same thing as Red so that he will be the hero.

That night, Team Rocket is in the tower. One of the Grunts says that there are rumors of the tower being haunted. Another hopefully says that they are just Ghost-typePokémon. The Grunt says that the weird part is that they are actually real ghosts. The other is worried; the same Grunt who killed Marowak tells him to stop being a baby as they have the Silph Scope, which can identify ghosts.

Red, also now in the tower, finds a young lady who is there to see her Nidoran's grave. She informs him that the ghost only appears towards the top. As he proceeds, he does not realize that Blue is ahead of him. Blue sees the ghost and runs; his screams catch the attention of Team Rocket, several floors above. The same worried Grunt from before thinks that the screams were because of the ghosts. The same Grunt that killed Marowak decides to go investigate.

Below, Blue runs into Red, and warns him about the ghost, which then appears. Blue wants to run, but Red decides to stay and fight. Blue then decides to go find Team Rocket. Red sends out Charmeleon, who attacks several times in a row to no avail. Blue, almost at the top of the stairs, is caught by the Rocket Grunt. He sends out his newly-evolved Wartortle to attack the Grunt himself.

Meanwhile, Cubone is trying to break out of its playpen at the Pokémon House. Reina goes to check on it, but as soon as she unlatches the gate, Cubone runs toward the Pokémon Tower. Reina, worried about the little Pokémon, chases after it. It runs up the stairs in the tower, apparently curious about something, with Reina still trying to catch up to it.

Blue runs down the tower's stairs and gives the Silph Scope, which he stole from Team Rocket, to Red. Red, wondering what it is, puts it on. The ghost is unmasked and revealed to be a Marowak. Red realizes that this is the same Marowak that was killed by Team Rocket. She warns Red not to go further, as Team Rocket is up the stairs. Cubone suddenly runs in, yelling for its mother, with Reina coming in soon after. Cubone hugs the ghost, causing Red to decide not to continue fighting. Marowak, realizing her son is safe, can finally rest in peace, and moves onto the afterlife. Blue then decides not to stay any longer and leaves.

Up the stairs, Team Rocket is confused as to what happened to the Silph Scope. Red, realizing that the Scope is what they were after, throws it to them and tells them to get out. They refuse, and one of the Grunts sends out his Koffing. Red sends out his new Jolteon and battles the Grunt. Koffing covers the field with Smog, causing trouble for Jolteon. However, Cubone then uses Bonemerang to clear the Smog, giving Jolteon the opportunity to defeat Koffing with Thunderbolt. Team Rocket then leaves, while Red and Reina advance to the top floor. There, they find Mr. Fuji tied up. He is relieved to see that Reina and Cubone are alright and quickly becomes acquainted with Red. He soon realizes that Marowak can rest in peace because Cubone is okay.

The next day, at the Pokémon House, Mr. Fuji gives Red a Poké Flute to wake up sleeping Pokémon, as well as a pair of mysterious stones. Red asks if Fuji really wants to give him these valuable gems. Fuji explains that they have no value as gems, but that Red will soon find out what exactly they are.

Cubone is now friendly towards humans and makes fast friends with Reina. As Red leaves Lavender Town to continue his journey, everyone says goodbye, and Mr. Fuji says that Red is welcome back anytime. As Red passes a tree, he hears Blue's voice up in the tree. Blue tries to take credit for the events of the night before, but Red comments that he was screaming the whole time. Blue denies everything as Red rides away on his bicycle. Red then saves his game.

After solving the mystery of the ghost of Pokémon Tower, Red goes on battling other Gym Leaders, as well as catching Pokémon, including a grumpy Snorlax he woke with his Poké Flute. He also encounters Team Rocket and meets their boss, Giovanni, and defeats them again. Charmeleon evolves into Charizard. Once he arrives in Saffron City, he and Blue help a woman, the secretary of the Silph Company's president, escape from a Rocket Grunt. She reveals that Team Rocket took over the Silph Company for the Master Ball, a Poké Ball capable of catching any wild Pokémon regardless of its health. Holding the president hostage, they threaten the scientists into working on the Master Ball day and night and using wild Pokémon as test subjects.

Red goes near the front entrance with Blue and the secretary to find Rocket Grunts guarding it. Blue tries to opt out, but an enraged Red pins him to the wall. Blue tells him to take it easy and Red says that Blue cannot call himself a Pokémon trainer if he does not care about what happens to Pokémon. Blue tells him he will only take the secretary to the police and leave while Red goes alone to the building. Red frees the captive Pokémon and the scientists, one of whom gives him a Lapras. Red barges into the president's office, where he finds Giovanni and a Rocket Grunt forcing the president to sign a paper. Giovanni taunts him and prepares to leave. Red stops him and the two have a Pokémon battle, with Giovanni having the upper hand, and cause a blackout in the building. Before leaving, Giovanni tells a knocked-down Red that Pokémon are tools for business.

Afterwards, Red goes to fight three Gym leaders and gets a Pokémon from the Karate Master. Red reads about Mew and Mewtwo in the now-deserted Pokémon Mansion. After defeating Blaine, Red goes back to the mainland where he hears about the power of the eighth gym leader. After Blue taunts him for not having gotten the eighth badge, Red goes to the gym and is astonished that the eighth gym leader is actually Giovanni, who was using the Viridian City gym as a cover for Team Rocket. Red challenges him. Giovanni taunts Red as Pokémon after Pokémon his Rhyhorn takes down. He begins to doubt his power and starts to remember how he was in the past. After a double faint, Red is told by Giovanni that Charizard will face Rhydon. Red says he wants it to be Charizard; otherwise, all his battles are meaningless. At first, this infuriates Giovanni, but then the Rocket Boss has a flashback when he sees Red throw his Poké Ball: he remembers that he used to throw it the exact same way when he was little, back when he had a Charmander and was happy with it. Giovanni then throws out Rhydon to fight Charizard, and the two Pokémon deal serious damage to each other, Rhydon gaining the upper hand. But just as Rhydon is about to finish the match with Horn Drill, Charizard uses Seismic Toss and rides on Rhydon, driving Rhydon to the ceiling, and throwing him down to the floor.

Surprised at the counterattack and his Pokémon fainting, Giovanni is defeated and presents Red his badge, but Red declines, saying that he does not need it from the boss of Team Rocket. Giovanni then disbands Team Rocket and tells Red to accept the badge from the Gym Leader of Viridian City. As Red leaves, Giovanni encourages him to move forward and, as for himself, decides to start a new life with Pokémon by his side.

After going through Victory Road, Red makes it to Indigo Plateau, where he fights against the Elite Four. He finally defeats the last member of the Elite Four, Lance, who tells Red that he still has to face one more challenge in order to become the Champion: the current Pokémon League Champion. Red enters the final arena, and is surprised to find out that the Champion is none other than Blue, who is also surprised that Red made it. While Red was battling, Blue was busy searching for the right Pokémon to match up with his opponents. The battle begins and after some intense fighting between both Trainers' entire teams, after Blue's Blastoise defeats Red's Jolteon, Red declares that the battle isn't over yet, and sends out his final Pokémon, Charizard. Blue remarks that this is similar to their first Pokémon battle, which he easily won. Red refutes this, stating that things will be different this time. Charizard charges in with a Mega Punch, but it does hardly any damage to the Shellfish Pokémon. Blastoise uses Hydro Pump, landing a powerful hit on Charizard and greatly reducing its HP. Despite this, Charizard holds on to a sliver of its health, and uses Fire Spin, trapping Blastoise in a fiery vortex. Blue is getting worried about Blastoise's condition, and Red orders Charizard to use Fire Blast, which lands a clean hit on Blastoise, reducing its HP to zero. Red congratulates Charizard on their victory, while Blue recalls his Blastoise and starts wondering how he could have lost, having only just having become the Champion, and complains that his reign is over already. Reluctantly, he admits to Red that he is the new League Champion.

Suddenly, Professor Oak shows up, congratulating Red on his victory. He admires how much he has grown since he set on his quest with Charmander, and then turns to Blue, explaining that he had departed for the Pokémon League as soon as he had heard that his grandson had defeated the Elite Four, but by the time he arrived, Blue had already lost his Champion title to Red. Blue complains that he just took too long, but Professor Oak ignores this, instead asking Blue if he understands why he lost. When Blue tries to explain that Red's victory was just a fluke, Professor Oak snaps at him, telling him that he lost because he didn't treat his Pokémon with trust and love. Professor Oak then turns to Red again, and asks him to follow him. They enter the next room, the Hall of Fame, where all the Pokémon League Champions and their Pokémon are recorded and honored. Red places his Poké Balls on the recording device, and a portrait of his Pokémon and himself appears on the wall. Red wonders if it is okay for a person like him to be called a Champion, but Professor Oak says that he fought with great honor, and he should be proud of that. Red agrees, and promises to not bring shame to the title of Pokémon League Champion.

Even though Red is now the Pokémon League Champion, his journey isn't over yet, as he still has plenty of Pokémon to catch in order to complete the Pokédex. During his travels, he even encounters the three Legendary bird Pokémon; Articuno, Zapdos, and Moltres. With his skills, Red manages to catch even these powerful Legendary Pokémon, adding their data to the Pokédex.

Finally, Red returns to Professor Oak's Laboratory, calling out that he has managed to complete the Pokédex. However, the lab is completely empty, save for one of Professor Oak's aides, who tells him that Oak is at Blue's house. Red quickly rushes there, finding Professor Oak with Blue, who is lying in his bed, covered with bandages. Professor Oak assures him that Blue will be okay with some rest, and Red asks what happened to him. Blue explains that he was battling a wild Pokémon at Cerulean Cave, when his Blastoise was sent flying and landed right on top of him. Red is shocked at the information, and asks for further details about the Pokémon. Unfortunately, Blue is unable to provide any detailed info, as he had never seen that Pokémon before, and his Pokédex was also crushed when Blastoise crashed on top of him. Red tells him to look for the Pokémon from his own Pokédex, and Professor Oak is astonished to hear that Red has actually managed to collect all 149 known species of Pokémon. Professor Oak congratulates Red on completing his lifelong dream, and starts going through the Pokédex. Blue is depressed to hear of Red's achievement, as he was just one Pokémon short of having collected 149 Pokémon too, but now he's unable to do that because his Pokédex is broken.

Professor Oak asks Blue to name the Pokémon's attacks in order to narrow down its type, and Blue tells that it used Confusion and Barrier, preventing any of his attacks from landing a single hit on it. Professor Oak deduces that the Pokémon was possibly a Psychic-type, and shows images of various Psychic Pokémon from the Pokédex. However, none of them matches the Pokémon Blue saw, leaving all three confused. As this Pokémon is not in the Pokédex, Professor Oak deduces that the Pokémon Blue battled was actually a previously unknown species, meaning that there are actually 150 different kinds of Pokémon. He turns to Red and asks him if he could go to Cerulean Cave to catch this Pokémon for the Pokédex. Red accepts the request, but Blue tells him not to do it, for the Pokémon's strength was so far beyond him that even Red couldn't stand a chance against it. Suddenly, Red has a déjà vu moment, as Blue's words remind him of something he had heard somewhere before. After snapping out of his daze, Red says that he has to try to catch the Pokémon before he can know anything for sure. Blue admits that he's right, then confesses that he had heard rumors of the incredibly powerful Pokémon and wanted to catch it just so he could use it to defeat Red the next time they battled. Understanding that this Pokémon is very powerful, Professor Oak invites Red to his laboratory to make preparations for his departure to Cerulean Cave.

In Lavender Town, Mr. Fuji is feeding a Vulpix at the Pokémon House, when Reina shows up with Cubone, asking him if he has heard of the rumors about Cerulean Cave. When Mr. Fuji says he has not, Reina explains that a monstrously strong wild Pokémon has been sighted there, and it just defeated a former Pokémon League Champion. When Reina says that the Pokémon is probably a Psychic-type, Mr. Fuji glances out of the window, saying, "So then… it's still out there."

Back in Pallet Town, Professor Oak's aide takes Red's Pokémon to be checked out. While she is gone, Professor Oak asks Red about the stones he received in Lavender Town. Red explains that he does not know what they are for, and when he mentions he got them from Mr. Fuji, Oak is surprised to hear the name. Red goes out fishing in order to get some time for his thinking, trying to remember why Blue's words sounded so familiar. Finally he remembers, and rushes back to the laboratory, telling Professor Oak that he finally remembered where he had read the same words that Blue had said before: at the Pokémon Mansion on Cinnabar Island. He explains how he had found a journal in the mansion, which had described the discovery of a previously unknown Pokémon, Mew, and how an entirely new Pokémon, which came to be known as Mewtwo, was created from Mew. Mewtwo had, however, gotten far too strong to control, thus resulting in its escape.

Professor Oak agrees with Red's idea of the mysterious Pokémon that beat Blue being Mewtwo. He also adds that the diary Red had read could be the notes of Dr. Fuji, a formerly well-known Pokémon researcher whose studies were dismissed after they started to grow darker due to his discovery of a new species of Pokémon and his attempts to create a new, powerful Pokémon. Professor Oak says that while Mewtwo's connection to this is only possible, the man who gave Red the mysterious stones could actually be Dr. Fuji, even though Red suspects that they might just have the same last name. Professor Oak goes further to explain that he bases his theory on the stones: when he had studied them, he had discovered an energy flow in between them, and that one of them had reacted strongly when put near Charizard. Red is a bit confused about this, but keeps listening as Professor Oak recalls having a faint memory of Dr. Fuji researching something like this in his earlier days. Given the mentioned facts, Professor Oak suggests that Red should give one of the stones to Charizard and keep the other one for himself. With the preparations complete, Red departs for Cerulean Cave to catch the 150th Pokémon.

Back in Lavender Town, Reina has heard of Red heading to Cerulean Cave, and rushes to tell the news to Mr. Fuji. Upon hearing the news, Mr. Fuji gets worried, knowing what kind of a monster Red is about to face. Within Cerulean Cave, Red surfs across the water with his Lapras, and finally notices Mewtwo, standing in the deepest corner of the cave. Upon noticing him, the Genetic Pokémon leaps forward and lets out a fierce roar, ready for battle. As soon as he makes land, Red sends out his Gengar to face Mewtwo. Mr. Fuji's worries back at Lavender Town start to show their authenticity, as, one by one, Red's Pokémon end up easily defeated. Even Articuno's Blizzard is countered by Mewtwo's Recover, and the Legendary Pokémon gets knocked out with a single hit. Mr. Fuji understands that Red has only one glimmer of hope on his side, and it lies within the stones he gave him. With all of his other Pokémon defeated, Red calls out his Charizard, who immediately starts battling Mewtwo. While Mewtwo counters Charizard's Fire Blast with Barrier and Swift, downing the Flame Pokémon, Mr. Fuji tells Reina about the legend behind the stones, an ancient tale passed down from the faraway Kalos region, which tells that if a Charizard and its human partner share a close enough bond, these stones would bring out a great power. Recovering from its fall, Charizard charges in with a Slash attack, but Mewtwo easily counters it, sending both Charizard and Red flying off the isle and into the depths of the cave's waters.

While sinking, Red is beginning to lose all hope, but when he sees Charizard's determined face, he regains his confidence and starts swimming towards Charizard. Just then, the two stones start to glow, and the power of the legend Mr. Fuji spoke of is finally revealed: Mega Evolution. A bright burst of energy occurs, and Charizard emerges from the water, now in its Mega Charizard X form. Red is surprised at this sudden transformation, and Charizard flies them back to the isle. Red orders another Fire Blast, which now burns light blue with even more power than ever before. The attack lands a direct hit, severely weakening Mewtwo. Red is impressed at the power-up, and seizes the opportunity by throwing an Ultra Ball at Mewtwo. The Ball shakes for a second, but then bursts apart, showing that Mewtwo isn't ready to be caught yet. On the contrary, the monster roars in ferocious rage, and fires a Swift attack straight at Charizard. Charizard easily endures the hit and retaliates with its own Swift attack, which Mewtwo finds impossible to dodge. Red tells Charizard to use Slash, and the Flame Pokémon strikes Mewtwo repeatedly with its sharp claws. Red sees an image of his Charmander in Charizard, and he admires how strong it has become. Deciding finally to put an end to the battle, Red commands Charizard to use Mega Punch one more time. Charizard charges at Mewtwo, its fist glowing bright yellow, and it delivers a devastating punch on the Genetic Pokémon, sending it flying straight into a nearby stalagmite. Mewtwo is now barely even able to stand up, and Red seizes the chance by throwing another Ultra Ball at it. Mewtwo is sucked into the Ball, which shakes for a couple of intense seconds before finally stopping, signalling that the capture was successful. Overjoyed at finally capturing the 150th Pokémon, Red picks up the Ultra Ball and raises it into the air. Charizard roars in victory, reverting to its normal form before it and Red rush at each other, celebrating their success.

Once again back in Pallet Town, Professor Oak holds a small party at his laboratory, celebrating both Red and Blue, for, thanks to them, the Pokédex is finally complete. Blue rants about how he should have been the one to catch Mewtwo, as he's supposed to be the Champion. Red suddenly realizes something, and Professor Oak asks what he's thinking. Red explains that he just understood that Mewtwo was created from a Pokémon named Mew, which means that there is still one more Pokémon out there for him to catch. Everyone gasps at the revelation, and Red stands up, ready to start his search for the 151st Pokémon. Unnoticed by anyone, a Mew suddenly appears outside of the window. Apparently having heard Red's words, it smiles teasingly before flying away.