Build 50 towers of any type in one mission.

Save a core that is less than 10 seconds away from the map's exit point.

Kill 1000 aliens.

Earn a Bronze (or better) medal in a Single Player Mission.

Use the speed up control for a total of 60 seconds in any mission.

Kill 100 aliens.

Kill an alien carrying a power core.

Win any mission without selling any towers.

Earn a silver (or better) medal.

You have saved Caius Thorn and left the "Martyr".

Fully upgrade a FWD vehicle.

Crash your car so badly it ends your rally.

Create a character