Metrenger

Metrenger (メートルンガー) is an enemy from Mega Man 8 and Mega Man & Bass, a large worm-like robot that is constantly released from a device that cannot be destroyed. They are located on the ceilings from Clown Man's stage, Grenade Man's stage, and the Wily Stage 2 in Mega Man 8; and in Ground Man's stage in Mega Man & Bass. In Mega Man 8, Metrengers are orange-and-purple; in Mega Man & Bass, they are orange-and-green.