Changes

|first = [[A Perfect Match]]

}}

'''Cycloid''', {{Nihongo|'''Cyclops'''|サイクロプス|Saikuropusu|}} in the Japanese verison, is a cyclops-like [[Bakugan]] equipped with a large hammer made of stone. In the anime, he is the [[Partner Bakugan]] of [[Billy Gilbert]].

==References==

{{Main characters 2}}