Octopus Batteries (also known as Adhering Suzy in Japan) are small security robots that appear in the first Mega Man game. They appear to move back and forth between walls and ceilings, barricading passageways and prohibiting access for the player. Depending how many there are in an area and what directions each unit moves in, they can be quite the annoyance. They aren't armed, though, and can be destroyed quickly with concentrated buster fire.