Grabbed by the Ghoulies

The Ghoulies have taken his girlfriend, and the only way Cooper is going to get her back is by entering the spooky Ghoulhaven Hall. Each room in the building sets a new challenge, and to move on to the next mission you must complete the task at hand (whether that be defeating the ghosts and other creatures or solving a puzzle). But there's a catch, as within each room there are certain rules that must be followed, otherwise the Grim Reaper will appear and attempt to take our hero to certain doom. Power-ups are available to aid Cooper, such as one-hit kills and invisibility, while anti-power-ups will make things harder for you, and items laying around can be used to fight the monsters.