Defeat 100 Mutant Starfish Bosses
Defeat 200 Mutant Starfish Bosses
Defeat 300 Mutant Starfish Bosses
Defeat a Mutant Starfish Boss on Normal Difficulty
Defeat a Mutant Starfish Boss on Hard Difficulty
Defeat a Mutant Starfish Boss on Extreme Difficulty
Defeat 9 Mutant Starfish Bosses in One Round on Extreme Difficulty
Defeat 5000 Enemies on Extreme Difficulty
Build 500 Towers
Cannon Tower to Max Level
Poison Tower to Max Level
Purchase all Upgrades for a Blade Tower
Purchase all Upgrades for a Snowstorm Tower
Purchase all Upgrades for a Reaper Tower
Mortar Tower to Max Level
Sludge Tower to Max Level
Bone Tower to Max Level
Lightning Tower to Max Level