Rating issues
This game has an overall eerie atmosphere. At various points in the game, the player will need to stealthily sneak through dark hallways to avoid monsters and if seen, they will chase the player. If the monster catches the player, they scream and the screen goes black and game over appears. One scene implies that human characters are eaten but again, the screen goes black and you just hear screaming.
Other issues
Small monsters can be defeated using a slingshot, however, as pellets are in limited supply, players are encouraged to use stealth to avoid, rather than attack the monsters.