Hydranoid

Hydranoid is an villain-turned-hero from Bakugan. He later redeems himself to help Dan and Drago and decides to join the Brawlers and also helped Drago to defeat Naga. Hydranoid was originally Masquerade's Guardian Bakugan, but now he is Alice Gehabich's Guardian Bakugan beceause Alice receives him from Masquerade.