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