Get all other trophies
Defeat the Horned Boss.
Buy the Plasma Pistol gun.
Unlock the Punk hero.
Unlock the Princess heroine.
Kill a Shredder enemy.
Buy the Shotgun gun.
Kill a Bomber enemy.
Kill a Track Shooter enemy.
Kill a Hopper enemy.
Kill a Red Horned enemy.
Defeat the Turtle Boss.
Unlock the Pirate hero.
Unlock the Ninja hero.
Unlock the Mime hero.
Unlock the Hippie hero.
Buy the SMG gun.
Unlock the General hero.
Kill a BrainWorm enemy.
Kill a Zombie Turtle enemy.
Kill a Worm enemy.
Defeat the Muscled Boss.
Unlock the Dino hero.
Unlock the Professor hero.
Buy the TwinShot gun.
Unlock the Hobo hero.
Unlock the Agent hero.
Unlock the Trucker hero.
Find a Crystal Skull.
Unlock the Lunatic hero.
Kill a Zombie Runner enemy.
Buy the Magnum gun.
Unlock the Gentleman hero.
Kill a Flyer enemy.
Unlock the Cop hero.
Kill a Zombie Shooter enemy.
Kill a Zombie enemy.