Kill the first boss.
Kill 1,000 enemies with missile.
Complete Dreadnought battle.
Complete Terror Fortress Omega battle.
Unlock 20 items.
Score 100,000 points.
Score 1,000,000 points.
Kill 2,000 enemies with the chaingun.
Kill 1,000 enemies with lasers.
Kill 500 enemies with the blaster.
Collect all thropies to unlock the platinum trophy.
Defeat all enemies along 10 waves in the same planet.
