Mewtwo

“It was created by a scientist after years of horrific gene splicing and DNA engineering experiments.”

— Pokémon Red

“Its DNA is almost the same as MEW's. However, its size and disposition are vastly dif­ ferent.”

— Pokémon Yellow

“Because its battle abilities were raised to the ultimate level, it thinks only of de­ feating its foes.”

— Pokémon Gold