Biribaree

Biribaree (ビリバリー) is an humanoid combat robot that appears as an enemy in Jupiter's stage in Mega Man V. He has a younger brother named Piriparee. These enemies attack by charging up intense amounts of electricity within their bodies, being temporarily invincible to all attacks while doing so, and then firing off a bolt of electricity. If the two brothers were together, they could cause a short circuit powerful enough to cause a global power failure.