Level !

Description
Level ! consists of a long hallway, approximately 10 km in length, with architecture resembling a hospital. Flashing red lights are present at even intervals along the hallway, along with an audible emergency alarm noise. At random intervals, doors are present along the hallway, but all have been locked thus far.

Properties
Once you enter this level, you'll immediately notice that behind you there is a horde of entities (Hounds, Skin-Stealers, Facelings etc.) running directly at you. Your objective is to escape the level as fast as you can before it's too late. The only way you can escape is by running all the way to the end of the 10 km long hallway. You'll have to run non-stop, with various obstacles, like hospital beds, chairs, and even through clumps that are blocking your way. Along the hallway, there are energy bars, which can be eaten to keep you running. If you run past the 10 km mark, you'll find an exit door at the end of the hallway. Entering it will lead you to a random level that is safe, with the Backrooms never sending you back here again. But if the horde of entities catches you, you'll be killed, likely in a painfull and brutal way.

Log: Discovery Of Level !
Operative Noah was in Level 2 on his way back to a colony called "The Survivors", trying to deliver valuable information about The Followers Of Jerry, when he anomalously appeared in Level !.     The operatives arrived at Noah's location soon after. Only his uniform was found, soaked in a pool of blood.

Colonies and Outposts
Due to the nature of Level !, creating a colony or outpost is infeasible.

Entrances

 * One can enter this level through any level of the Backrooms when least expected. Only 3 have entered this way, so this is extremely rare, so sleep well tonight.
 * One may enter this level by noclipping under a table in Level 521 (specifically in the 521-A section) that has "!" written on it.
 * If you are spotted with a gun in level 340, you will be transported to this level.
 * Wandering in Level 354 provides a guaranteed gateway into this level when a certain thought arises…
 * Touching a Christmas decoration in Level 655 will transport you to this level.
 * If you die before a year has passed in Level 365, you will be sent here.
 * Find an elevator on Level -26

Exits

 * To exit, one must run 10 kilometers to the end of the level, where they will be transported back to the level from which they entered.
 * HALL HOSPITAL LA PRINCESA.jpgad, going into the direction of the entities and eventually surpassing 10 kilometers will lead to The Void. Do not attempt this.
 * Dying in this level has a 0.004% chance to lead to Level Rush.
 * No-clip through a door to enter Level 832.
 * No-clip through the ground to reach Level 52, This is extremely difficult.
 * No-clipping anywhere has a small chance to lead to Level 66666.
 * Find a lightened room with a door on it to enter Level Maker.
 * Enter Level !.1 by touching/grabbing an airplane figurine off one of the random tables during your run.
 * No-clipping can rarely bring you to Level 202
 * Give one of the entities a hug, they are just misunderstood and will show you a secret door leading straight into the frontrooms =).  DO NOT TRUST 
 * By finding another hallway before the exit, you can find a fire exit door. By going through it you can arrive at Level !.2