Bakugan: Mechtanium Surge
Damdos first appears in Battle for Bakugan Land. He appears to be short-tempered and doesn't enjoy the presence of humans. His good nature is rekindled by defending them from Wiseman and protecting Julie from a falling statue.
He appears again in Doom Dimension Throwdown, talking to Julie. He convinces Julie to go check on the Brawlers, and helps a little girl to get her lost balloon back. At the end of the episode, he is killed when Mechtavius Destroyer destroys Bakugan City.