Power Fists are power-ups in Rayman 2, looking like glowing yellow fists. They make Rayman's magic fists much stronger, so that he can get rid of his enemies more easily. With a Power Fist, an energy ball is thrice as strong as a regular one, and a fully loaded energy ball six times as strong. If Rayman gets hurt three times, their effect will vanish.
Their equivalent in Rayman was called the Golden Fist.