Monkey D. Luffy first uses each of his Gears in the following One Piece episodes:
- Gear 1 (base form, no official Gear 1 name): Debuted in Episode 1.
- Gear 2: First used in Episode 272 (Enies Lobby arc) during the fight against Blueno.
- Gear 3: First mentioned in Episode 288 and fully shown in Episode 305 during the battle against Rob Lucci.
- Gear 4: Debuted in Episode 726 titled "Gear 4! The Phenomenal Boundman!" during the fight with Donquixote Doflamingo.
- Gear 5: Debuted in Episode 1071 during the Wano Country arc, where Luffy awakens his Devil Fruit's true power and transforms into his fifth Gear.