GTA: Alien Attack Team 2
Man has come a long way as they are able to go to the stars. Currently, they have a station to manage the galaxy. This is the first line of defense against invading aliens. However, the alien manage to get a hold of the station, but fortunately for us, the crew are brave enough to fight the aliens. The idea here is to get rid of the aliens. Each alien you kill would earn you money. You can use the money to buy better weapon and advance protection for yourself. The game would be harder as you make some progress.