
Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.

Complete all game levels

Kill 100 aliens

Kill 1000 aliens

Liberate the first planet

Call for 50 friendly units

Call for 20 friendly units during the battle

Upgrade one unit till 10th level

Use airstrike 100 times
Minimum OS *: Windows 7/Vista/XP Processor: 1.6 GHz Memory: 1GB Hard Disk Space: 100MB of free space Video Card: 128 MB DirectX 9.0c compatible or better video card with pixelshader 2.0 DirectX®: 9.0c Sound: DirectX 9.0c compatible sound card Additional: Microsoft XNA Framework 3.1