Rush

This is how to hide from Rush: Once you see the lights flicker or hear him coming, duck for cover in a nearby room, under a bed, or most commonly, in a closet. But, don't stay in too long- or Hide will get you!

Rush barges down the hallway only once, unlike Ambush, and opens the next door for you, unless it is locked.

The rarity of Rush is very common 1 in 5. It is impossible to beat the game and NOT have Rush. He isn't very hard to hide from, but can be very annoying at points.