Shoot, upgrade, conquer enemies, defeat bosses, acquire achievements, collect gems, all in an attempt to save yourself and your gun from the clutches of the evil Professor.
Once again, McCoy will have to run, jump, and fight his way through swarms of enemies across diverse areas, using anything he can find along the trail to help him reach the treasure.
Earth is being invaded by an alien race and the only chance humanity stands at defeating the alien invaders lays buried in our past. Journey back in time to exotic lands and uncover an ancient alien super weapon - mankind's survival depends on it.
