==Gameplay==
===Trading Card Game===[[Fusion Character Card]]s are double-sided, with one side containing the unFused Bakugan and the other with them Fused. At the start of the game, the Fusion starts with its unFused side facing up. Each Fusion card has a required for Fusion, normally an [[Energy]] requirement, and once that requirement is met the Fusion Bakugan can Fuse and flip over to its Fused side. Once Fused, the effect is permanent for the rest of the game, save for any cards that specifically reverse the effect. In the [[Toy Battling Game]], Fusion Bakugan fuse when they roll onto a BakuCore or Gate Card with a {{Fusion}} symbol instead of paying Energy.
Fusion Bakugan only provide Ability Cards of their starting, mono-Faction side. For example, the [[Pyrus Darkus Dragonoid x Tretorous (Fusion Force)|Pyrus Darkus Dragonoid x Tretorous]] card is only able to provide Pyrus-Factioned cards, as that is the Faction of [[Pyrus Dragonoid & Tretorous (Fusion Force)|its non-Fused side]].
Certain [[List of Bakugan: Armored Alliance BakuCores|BakuCores]] contain effects with Fusion symbols on them. These bonuses are only usable by Fused Fusion Bakugan.
===Toy Battling Game===
Fusion Bakugan are still usable in the [[Toy Battling Game]]. They begin the face with the unFused side facing up, and if you are able to roll its figure onto a BakuCore that contains a {{Fusion}} symbol, you flip the card over to its Fused side.
==List of Fusion Bakugan==