BackTrack for Game Boy Advance (GBA)

Backtrack (nintendo Game Boy Advance, 2001)

There's a pack of evil aliens bent on mining Earth of its natural resources, but Jim Track isn't about to let that happen. When a traveler arrives from 400 light years away to warn Earth of the potential danger, the mission begins. Guide Jim into the heat of battle (it all takes place on the moon), trying not only to get to the center of the threat, but also to escape alive. Four players can actually link up and compete in a human-versus-alien match-up.

BackTrack

An informant named Kilantrainia, "Bob" for short, has traveled 400 light years to warn Earth about an impending danger. Domingoaniax, an alien leader, and his army of mutants and robot soldiers have taken control of the BSBODSOM project (Build Secret Base on Dark Side of Moon). For months these aliens have been abducting humans and assimilating them into an army of droids that Domingoaniax can use to overwhelm Earth and plunder its natural resources. As our last hope, you must help Jim Track infiltrate the base and succeed where many others before him have failed. You must destroy every alien or assimilated human you encounter, port back as many unassimilated humans from the pods as possible, and then trigger the self-destruct sequence to terminate the moon base and the remaining aliens. The game features full, smooth-scrolling 3-D, smoke and transparency effects, 12 intricate levels to master, and nine unique weapons.