Gama is fat in the chest and belly, but thin in the arms and legs. With his greenish skin, long tongue and webbed hands, he bears resemblance to his namesake, a toad. He has dark brown hair, very short at the sides and longer on the top of his head, combed in a middle parting. His eyes are small, whereas his mouth is rather big.
Gama's fighting uniform is comprised of a green sweater with a stripe of lighter color going from one wrist to the other, running up his arms and across his round shoulders, a white shirt worn underneath, white trousers, and white and black sneakers.
Not much is known about Gama's abilities, but the fact that he was a Floor Master is proof enough of his power and proficiency in Nen. Still, he was defeated single-handedly by Jed's followers. Basing on a magazine that Killua was eying over and the way he was shown fighting later in the movie, he seems to rely on his tongue for battles.