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From The Bakugan Wiki
→Trivia
* He has double-jointed legs like [[Contestir]], [[Titanium Dragonoid]], [[Aranaut]], and [[Cross Dragonoid]].
* The molds for regular and Battle Gear compatible versions of Helios MK2 are basically identical. However, the Battle Gear version is missing the springs that keep its wings from instantly falling down. This can easily be seen by looking at the back of the closed marbles.
** This is not the case with the anime, in which his ball form changed significantly when he was made compatible with Battle Gear. Changes include the designs on his wings, the flaps in his wings opening from the outside instead of the inside, and the addition of separately opening arms.
{{Main characters 2}}
