| Type | fighting |
| Category | Status |
| Power | 0 |
| Accuracy | — |
| PP | 20 |
| Introduced | Generation 3 |
Bulk Up raises the user's Attack and Defense by one stage each.
Stats can be raised to a maximum of +6 stages each.
When a Pokémon is holding Fightinium Z and uses its Z-Power, Bulk Up turns into Z-Bulk Up and raises Attack one stage, in addition to its usual effect as above.
| Ruby Sapphire Emerald | Bulks up the body to boost both ATTACK and DEFENSE. |
| FireRed LeafGreen | The user bulks up its body to boost both its ATTACK and DEFENSE stats. |
| Diamond Pearl Platinum HeartGold SoulSilver | The user tenses its muscles to bulk up its body, boosting both its Attack and Defense stats. |
| Black White Black 2 White 2 | The user tenses its muscles to bulk up its body, boosting both its Attack and Defense stats. |
| X Y O.Ruby A.Sapphire | The user tenses its muscles to bulk up its body, raising both its Attack and Defense stats. |
| Sun Moon Ultra Sun Ultra Moon L.G. Pikachu L.G. Eevee | The user tenses its muscles to bulk up its body, raising both its Attack and Defense stats. |
| Sword Shield B.Diamond S.Pearl | The user tenses its muscles to bulk up its body, raising both its Attack and Defense stats. |
| English | Bulk Up |
|---|---|
| Spanish | Corpulencia |
| Italian | Granfisico |
| Japanese | ビルドアップ (Build-Up) |
| German | Protzer |
| French | Gonflette |