While Episode 726 is the first time Gear 4 is used, Luffy later develops two other variations of Gear 4 in later arcs.
| Gear 4 Form | Anime Episode | Arc | Primary Opponent | | :--- | :--- | :--- | :--- | | (Debut) | Episode 726 | Dressrosa | Doflamingo | | Tankman | Episode 846 | Whole Cake Island | Charlotte Cracker | | Snakeman | Episode 870 | Whole Cake Island | Charlotte Katakuri | in which episode luffy use gear 4
| Form | Arc | Key Episodes | |------|-----|---------------| | | Dressrosa | 726–733, 736–746 | | Tankman | Whole Cake Island | 806–807 (vs. Cracker) | | Snakeman | Whole Cake Island | 856–857, 870 (vs. Katakuri) | | Boundman | Wano / Onigashima | 976, 1000–1004, 1028, 1042–1045 (vs. Kaido) | While Episode 726 is the first time Gear