Boomer Kuwanger (ブーメル・クワンガー Būmeru Kuwangā), renamed Boomerang Kuwanger in Mega Man Maverick Hunter X, is a Maverick in Mega Man X based on the stag beetle ("kuwagata" in Japanese). He was a Maverick Hunter from the 17th Elite Unit under Sigma, the same unit as his brother Gravity Beetle and X. He has no sense of right and wrong, making decisions based only on logic. When Sigma rebelled, he used deductive reasoning and joined the rebellion. He took control of a tower that would be the symbol of a city, and used it as a fortress. When X reached the top of the tower, Kuwanger saw that X had great potential and thought that he would be fun in a fight.

His theme Mega Man X - https://www.youtube.com/watch?v=CiFZpHaii5g Maverick Hunter X - https://www.youtube.com/watch?v=I1E84hGpZtM