Beaver Dam/Glitches

• There is an Armadillo that spawns inexplicably in the hallway beyond the electric room after you find Roofus' telepoint.
• In the area with the broken elevator is a tall ledge near the claw, Tweek can glide on there from the claw and you can see the whole level from a bird eye's view and leap to wherever you want. This can result in getting out of level boundaries. This only works in the original game, as all future installments added an invisible barrier.