| Berserk Gene |
| Item Type | Japanese Name | Price | ||||
| Hold Item | はかいのいでんし Destructive Gene |
|
| Attainable In | |||||||||||||
| RGBY | GS | C | RS | E | FRLG | DP | Pt | HG | SS | B | W | B2 | W2 |
 Yes |
 Yes |
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| X | Y | ΩR | αS | S | M | US | UM | LGP | LGE | SW | SH | BDSP | PLA |
| In-Depth Effect |
| This item confuses the holder and raises their Attack two stages. The Berserk Gene disappears after use |
| Flavour Text | ||||||
| Gold | Silver | Crystal | Boosts ATTACK but causes confusion. | |||
| Locations | ||||||
| Gold | Silver | Crystal | Kanto: Cerulean City | |||