Parents need to know that this game earns its M-rating by requiring your character to rip heads off of mutated bodies and place them on your own headless dead body -- you can also set the other mutated bodies on fire. The game is quite graphic, showing bloody body parts throughout a mad scientist's facilities. This is a mystery about why your character died, and you must find and put on nine dead heads. It's a bizarre premise, with gruesome details including blood spurting out of bodies, but it's meant to be comical for mature players.