Add a small orange spherical fish like creature commonly found in or near the shore of bodies of water. It is a docile creature that prefers to run from a fight. Aside from it's joyous personality, it tends to live a solitary life, brightening the lives of others, leading it to be "gaurded" by neighboring creatures in case of an attack on it. It can also become a pet (The mode of transportation can be like a back piece where you carry him in a fish tank like backpack or HE COULD ROLL AFTER YOU!), commonly found in ocean worlds or large bodies of water in most other worlds, excluding planets with extreme temperatures and no atmosphere. Also give an animation to where it earns it's name, giggling and laughing. The perks it could offer could vary from a small amount of bouyancy, limiting damage from falls, to an aura like perk slightly boosting base stats for allies in multiplayer or crew members, and these perks can be nullified on desert or tundra planets.
Might work. I think you need a bit more detail about where / how you get it, and what bonuses it offers (if any).