>>32879713>Final battleYou burst into the scene of the final plan about to be unleashed. Rather than fight right away though, Leader has a brief conversation about ideals and cynicism, asking you why you fight him. But before you can answer, he tells you to think on it while you battle, and the fight begins.
His admins appear on the scene, and each send out their signature mon in a triple battle. Gardevoir, Alakazam, and Metagross.... ALL Mega.
But the Professor and your rival arrive too, and send out their own Mega Pokemon to fight alongside one of yours, three on three.
Once you win, and without your Pokemon being healed, Leader steps forward, and Mewtwo teleports in. Depending on the Type of the first Pokemon in your party, it Mega evolves into either Mega Mewtwo X or Y, with its moves selected accordingly as well. Using that Mega Absol might not have been such a good idea after all! The thing is also way overleveled, and takes multiple Pokemon to bring down.
Once Mewtwo is defeated, Leader surrenders. He shuts down his doomsday device and tends to Mewtwo, while continuing your conversation. You get a few choices about why you fought against him that you can select between. The international police appear... and he teleports away, but not before promising that he's done with schemes.
Yes, I put a lot of thought into this.