Nightmare Creatures

cheat password
Choose "enter password" from main menu and enter left, up, C down, C left, C right, C up, C left, down. A cheat menu will appear, allowing you to turn on unlimited lives and wepons, play as a monster or start at any stage.

Cheatmode:
Complete the game using any character and difficulty setting. Allow the main menu to reappear one the credits have ended. Choose the "Start" or "Load" selections to display a cheat menu with unlimited lives,play as monster,and level select options.