Follow Nicholai deeper underground.

Withstand the zombie siege.

Defeat two enemies with a single shot.

Defeat zombie Brad.

Destroy a Charlie Doll.

Improve a weapon.

Expand your inventory.

Escape from uptown Raccoon City.

Unlock all trophies.

Obtain all of the Antique Coins in Madhouse difficulty.

Complete the game without opening the Item Box more than 3 times.

Pop 50,000,000 Bloons

Purchase and upgrade to tier 4 all Specialty Buildings