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It, like a regular Chamelia, has the ability to copy an opponent's Bakugan and their Ability Cards. It was deleting people's memories of their Bakugan, and caused many people, including Dan, Shun, and Julie, to forget that their Bakugan could talk. It also completely wiped out many Bakugan's memories, causing the Bakugan affected to be unable to speak.
At the end of the manga, it threatened to wipe out all of the people's memories. In a battle against Dan and Runo, it copied Tigrerra and Runo's abilities, anticipating that Runo had Pyrus cards that would increase Drago's abilities. But Mecha Chamelia used the third card to turn into Drago, yet the cards were Haos! In the end, having no useful cards, Mecha Chamelia was defeated by the two Brawlers. Katie did not deactivate him despite the fact he ruined the tournament.
- Chronologically, it was the first Mechanical Bakugan.
- Though it was mechanical, it appears to have a mind of its own, unprogrammed, unlike Season 2's Vexos' Mechanical Bakugan, which could not speak.
- Mecha Chamelia only appeared in Bakugan: The Evo Tournament, so a toy Chamelia was never made.