Contra: The Alien Wars is the third entry in the Contra series. Like its predecessors, it is a predominantly side-scrolling shooter with a heavy emphasis on action. The protagonist can fire in eight directions when standing still. New abilities include climbing on walls, grabbing poles and navigating tanks. Parts of scenery can be destroyed. Originally released on the SNES, this version of the game was released on the Game Boy in 1994.

ThunderAxe31 makes quick work of this game, while refusing to kill any enemies. Well, he accidentally stomped on a couple of them, watched one fall into the abyss, wasn't careful enough and enabled some landmines... Some enemies even exploded by themselves. But it was never his intention, okay? It's a pacifist completion.