Hoohoo (ホーホー Hōhō) is an owl robot from Mega Man 9 that appears in Concrete Man's stage and the first Wily Castle stage. It flies carrying a rock and tries to drop it into the player. The rock will explode into two smaller fragments when it hits the ground. In an Endless Attack stage, they are shown holding ice balls instead of rocks.
- "Hoo Hoo" is the sound made by an owl.