Aerodent

Aerodent is a boss in Wario Land 4 that resembles a small mouse (or rat) that utilizes an inflatable bear in order to fly high enough to dive-bomb Wario using its abnormally sharp tail. Wario reacts via punching the rodent back into the inflatable bear multiple times in order to burst the balloon, in return the mouse occassionally throws lit torches at Wario to try and set him on fire. When defeated the mouse seemingly escapes but the inflatable bear explodes.