Serious Sam explodes into the second dimension using everything in his arsenal to battle the legions of Mentals horde. Let the heavy ordinance fly in this side-scrolling shooter featuring all the over-the-top action of the Serious Sam series. Stack guns one on top of the other, up to 6 GUNS HIGH, and take down unrelenting waves of beasts. Bring a friend for two-player action, and upgrade your guns to fire deadly acid rockets, cybernetic bees, chainsaw Yo-yos, even pats of butter and much more!