This nickit is a gluttonous explorer that fools others so he can steal their food or eat them outright. He eventually gets way too fat to move in dungeons because he doesn't know how to not eat when he sees food and usually becomes immobile and has to wait until he can massage his belly down. He likes gadgets and invents things to help him with his trickery and eventually creates a mechanical arm that helps him grab food (or pokemon) when he gets too big.
He's also horrible with directions and can't read maps at all. prob shoulda gotten your tummy treat to help you before you swallowed him...