Get to the end of the level, destroying as many enemy units as possible on the way.
Calling all Warcraft fans: Give orders to your troops and destroy the other teams.
Fire the white substance at the tiled surface to kill all of the germs!
Try to kill all the microbes without getting shot!
Take control of 4 separate turrets as you fight off 30 waves of enemies.
Defend your dirt by shooting all of your enemies.
Destroy all of the tanks and score points.