Sorry for the thread revival.

Anyways, I decided that Icey's main attack is jumping, like Mario, while Firey's main attack is punching, like Rayman (except the hand doesn't travel far). Enemies with spikes/armor/beaks/etc. on the sides will damage Firey when he punches, while enemies with spiky helmets and such will damage Icy when he jumps on them.

More advanced attacks (shooting?) will come soon.