Viola

From Wikitroid, the Metroid wiki

A Viola is a creature that resembles a head that is found in Ridley's Lair. They are in Metroid, Metroid Zero Mission and in Super Metroid. Normal ones have the same AI (Artificial Intelegence) as a Zoomer. There are two main types: a orange type and a blue type. There is also a flying variation of a Viola which is called a Multiviola.