In battle, Marshmallow attacks by swiping his fists, jumping to create shockwaves, or breathing a gust of ice. If hit by any Fire attacks, he will temporarily be stunned. Occasionally, Sora and Goofy will team up to perform the Tree Whip situation command, where as Marshmallow gets closer to them, they must fling the tree at him. Eventually, he will cover himself in spikes and his attacks are much more aggressive in this state. This form of him is armored, and if destroyed will briefly cause him to drop his guard.