Bagubagutchi is a Tama-Pet that belongs to Mametchi's family, the Mame Family, and a recurring character in the Tamagotchi franchise. He is a dog-like Tamagotchi with a bag-like head, and is very intelligent and loyal.
In Mario Kart Arcade GP 2, Bagubagutchi is one of the three special items Mametchi can use. His function is very similar to that of a Banana, in which an opposing driver will spin out and lose time should he/she run into him.