Try to avoid the Boojum, Blair, and Wehndo. They all have 1 thing they're supposed to do,The Boojum will hunt you down, the only way to avoid it, is by closing the doors. The Blair will get in your way by blocking the screen, he takes a while to pass, so make sure the Boojum is out of the hall. Now the last is Wehndo. It's a tricky one because it will hide at the bottom of the screen, plus you might be able to hear its breath, And the button in the middle that says "flash" will scare away Wehndo. Good luck :)