=== I recommend trying this in slowmo! ===
(ONLY POSSIBLE IN THIRD PERSON)
(Only works on flat walls)

Before doing the technique:
1. Learn how to control WallEject
How to WallEject:
-Run and jump straight at the wall (make sure you're off the ground when touching the wall.)
-While in the WallSlide press F/square/circle (Pc,Ps,Xbox)
-Right after pressing the button hold your key/stick to WallEject in the direction you chose.
2.Try to WallEject as close to the wall as you can (avoid moving the camera)

Lets get to executing this technique.
-Run straight at the wall and WallEject to one of the sides. (Make sure your camera is facing straight at the wall)
-Hold your direction key after ejecting, wait until your character fully turns. Then wait for about 0.2s.(Non-Slowmo time).
(Console) -Immediately turn your stick in the opposite direction (180 degrees)
(Pc)- Switch between keys A to D or D to A.
-The character should repeat the WallSlide animation.
-Repeat this process as long as you want.

Key explanation or smth (PC only):
F(press) D(Release) (0.2s) A(hold) (0.2s) A(release) D(Hold) (0.1s) (REPEAT)



(Am not very good at writing this stuff)