Alien Outbreak 2: Invasion 2005

Alien Outbreak 2: Invasion is a top down shooter where you will battle waves of enemies and use the power-ups they drop to aid yourself. Your movement allowance via mouse is horizontal and vertical to three quarters of the playing field.The power-ups are offensive or defensive in that you will get upgrades to weapons, secondary missile or explosive weapons and you will get shields and invisibility spheres. Read more (may spoil)