Once you have won all of the cups and defeated the Gym Leader Castle, a new aspect arrives in the main area of the Pokémon Stadium. Above the stadium itself, a silhouette of Mewtwo appears. This brings a final battle with the legendary Pokémon that can be repeated at will.
Defeating Mewtwo can be really tricky, though you can use an entire 6 Pokémon team against Mewtwo itself. Once defeated in Round 1, it will open up the hard mode of the game: Round 2. After defeating everything in Round 2, you can challenge Mewtwo again, but Mewtwo is far stronger
| Rules | |
GameBoy Usable: Yes Allow Same Pokémon: No Pokémon Useable: All Sleep Clause (No more than 2 Pokémon Asleep): No Freeze Clause (No more than 2 Pokémon Frozen): No Self KnockOut Clause (Final Pokémon fainting at the same time as opponent equals loss): Yes |
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Round 1
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| Mewtwo | Mewtwo | |
| Battle Type Single Battle |
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| Attacks: Psychic Rest Thunderbolt Blizzard |
Round 2
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| Mewtwo | Mewtwo | |
| Battle Type Single Battle |
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| Attacks: Psychic Rest Thunderbolt Amnesia |