No-Clipping is the process of going through solids and then falling through The Void into a certain Backrooms Level.

It is also the primary way to Enter The Backrooms And Escaping  the Level 0. 

To No-Clip and Enter The Backrooms or travel through them, replicate these conditions:

-a mix of of  opposite temperatures, like cold and hot, especially cold

-Hipnotized or under mind control of yourself.

-Touching dark walls.

-Entering out-of-place doors.

Tripping and falling continously, until you No-Clip the floor.

use these conditions and try the methods at your own risk, otherways you may not survive in The Backrooms.

if youre In The Frontrooms and willing to Enter The Backrooms and try the methods and conditions mentioned above, try them at your own risk, since The Backrooms are a really dangerous place to be in and you should not play the fool while youre inside them. if youre in The Frontrooms, it doesnt matter whether you take it as a joke or not, but if you fall into The Backrooms, do not play the fool and do dumb and dangerous  errors or you will not survive even in the first level.