Berserk Gene is an item that confuses the Pokémon and raises its attack. This item is obtainable when catching Mewtwo in Gold, Silver, and Crystal, it has a 50% chance of having it as a held item.
Locations[]
G/S/C: Cerulean City
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Berserk Gene is an item that confuses the Pokémon and raises its attack. This item is obtainable when catching Mewtwo in Gold, Silver, and Crystal, it has a 50% chance of having it as a held item.
G/S/C: Cerulean City