Defeat the last boss

Destroy 3 enemy missiles with a single shot

Earn 5000 points in arcade

Earn 10000 points in arcade

Earn 20000 points in arcade

Upgrade Power to maximum power level

Upgrade Reload to maximum power level

Upgrade Speed to maximum power level

Upgrade Rebuild to maximum power level

Max out all available upgrades

Finish a level in Campaign after spending all missiles

Destroy 50 Carriers before they drop a missile

Destroy 25 Scatterers before they drop their missiles

Get outsmarted by a Smart Bomb

Use all powerups

Finish a Campaign mission with a single Silo and a single City remaining

In Arcade revive 300 Silos

Survive 10 seconds with a single Silo remaining