This is the first creature Trii meets on the planet he crash lands on. They don't see eye to eye at first but over time, they grow to be good friends. Aardy accompanies Trii on his adventure to provide him with information about what location they're in or what enemies Trii is facing (since Trii is quite new to the planet and its surroundings). He can also be a big help, especially when it comes to certain transformations. For instance he can use his nose as a cannon to fire Trii when he transforms into a ball, or a jet engine to accommodate Trii's paper-plane mode to boost altitude or to cover more distance!