Upgrade Power to maximum power level
Max out all available upgrades
Finish a level in Campaign after spending all missiles
In Arcade revive 300 Silos
Survive 10 seconds with a single Silo remaining
Use all powerups
Upgrade Speed to maximum power level
Get outsmarted by a Smart Bomb
Destroy 3 enemy missiles with a single shot
Destroy 25 the Scatterer before it drops its missiles
Earn 10000 points in arcade
Defeat the last boss
Destroy 50 the Carrier before it drops a missile
Finish a Campaign mission with a single Silo and a single City remaining
Upgrade Reload to maximum power level
Upgrade Rebuild to maximum power level
Earn 20000 points in arcade
Earn 5000 points in arcade