Luffy's rubber-rubber fruit turns out to be one of the most powerful and narratively significant Devil Fruits in One Piece. Here's the full breakdown.

What is Luffy's Devil Fruit?

The fruit Luffy ate as a child was originally called the Gomu Gomu no Mi (Rubber Rubber Fruit). It was revealed late in the series to actually be the Hito Hito no Mi, Model: Nika — the Human-Human Fruit, Mythical Zoan type. This retroactive reveal changes everything about how his powers work.

What is the Sun God Nika?

Nika is a legendary figure from ancient One Piece history — a warrior who brought laughter and freedom to slaves. The World Government had been hunting the fruit for 800 years specifically to suppress this power. The nature of the fruit is joy: it allows the user to fight in any way they can imagine, limited only by their creativity.

Gear Second: Blood Pump

Luffy pumps blood through his body faster, raising his metabolism and reflexes dramatically. His entire body becomes a high-speed engine at the cost of accelerated energy burn. He's faster but uses stamina faster.

Gear Third: Bone Inflation

Luffy blows air into his bones to inflate his fists and limbs to giant size. Devastating damage output but reduced mobility. His body temporarily shrinks to a child's size afterward as a tradeoff.

Gear Fourth: Boundman, Tankman, Snakeman

Gear Fourth coats Luffy's form with haki-hardened rubber in different configurations. Boundman is the standard combat form — spring-loaded attacks at high speed. Tankman maximizes defense and counterattack. Snakeman maximizes attack speed with unpredictable trajectories.

Gear Fifth: Nika's True Form

Luffy's heart syncs with the rhythm of liberation itself. His body turns white, his hair becomes cloud-like, and the rules that constrained him break. In Gear 5, Luffy can interact with reality like a cartoon character — his imagination becomes the limit. He's fought turning the ground into rubber, picking up entire islands, and pulling the air itself into a punch.

Experience Gear 5 with Luffy