Corrupted Beidou

Corrupted Beidou is a difficulty that is basically a class 0. This is the same thing as Climb a Truss or Press a Key. But once you reach the other side or the top of the truss, you either climb back down or walk backwards to win. Depends on what spectrum it is, you will redo the process twice, thrice, four times or even more up to 15 times. Low spectrum would often involves walking 50 studs and walk back or climb a 50 stud truss and climb back down.

Low CB
Walk/climb 50 studs and walk/climb back

Mid CB
Walk/climb 25 studs and walk/climb back and repeat the process 4 times

High CB
Walk/climb 100 studs and walk/climb back

Borderline CB
Do a pacer test (35 studs) and reach a score of 15

Trivia
The difficulty icon is Octogoat YT's new pfp