Finish 3 missions on 3 stars.

Upgrade 5 weapons to the max in a single mission.

Save 1000 or more credits in a single mission.

Build all weapons in a single mission.

Place 50 weapons in a single mission.

Fire all superweapons in a single wave.

Finish 12 missions on 3 stars.

Collect 100 Dancing Aliens.

Finish 5 missions without the Research Unit.

Kill 30000 aliens.