Mambu

Mambu (マンブー), known as Flying Shell in some English sources, is a reconnaissance robot that can only be harmed when their eyes are exposed. When they open their shell, shots spread out in eight directions.

Mega Man
Mambu appeared Bomb Man's stage and Cut Man's stage in the first Mega Man game. When one Mambu is destroyed or leaves the screen, another Mambu will appear, spawning endlessly, one at a time. In Bomb Man's stage, it is possible to stop their appearance by freezing one with Ice Slasher and taking distance to make it disappear from the screen.

Other media
Mambu appeared in Captain N: The Game Master.

Similar enemies
Enemies similar to Mambus.
 * Met
 * Pukapelly
 * Diarn