Geoffrey Giant is a humanoid Giant from Planet Avalar. He was paid a large amount of gems by Mom in exchange for being a guinea pig, and he agreed as she gave him the Human-Human Fruit, Model: Neanderthal. He served as the first official boss of Operation: NECSUS.
Nextgen Series[]
In NECSUS, Geoffrey Giant was brought to Amazonia by Mom, using him to lift Kuja Colosseum's ring to reveal the Dimensional Fragment, a piece of the Dimensionator. He took the fragment and battled Nebula and Mocha, and was defeated by the pair after Vweeb snuck into his brain and damaged it. Mom later hauled him off the planet after his defeat.
Personality[]
Geoffrey appears rather dimwitted, unable to speak and only roaring, but this may likely be due to his caveman form.
Powers[]
Geoffrey ate the Human-Human Fruit, Model: Neanderthal, allowing him to turn into a caveman, which increases his own average Giant strength. He is able to pick up chunks from the ground and throw them at enemies.
Weaknesses[]
Geoffrey's Devil Fruit was still experimental at the time, so it didn't give him enough strength to be victorious. His caveman form also apparently weakens his brain, so he's unable to think straight. Just as well, his huge size makes him an easy target, and his bare feet are vulnerable to sharp ground objects. Since he ate a Devil Fruit, he's unable to swim.