Nil

nil is a removed/joke difficulty in JToH XL that is represented with the color gray. This difficulty was the hardest difficulty in the game. Jumps of this difficulty are insanely accurate, require difficult glitches, or are just plain stupid. One extremely tiny mistake can cost you lots of progress or even your entire run, and there is a bigger element of luck involved, because small physics mistakes may screw you over very easily.
So far, this difficulty has only been used in April Fools 2024. This difficulty only has 1 tower, that being Citadel of Broken Tables, however this citadel is not actually nil difficulty, as it is a homage to the original tower being shown as nil difficulty in the original JToH.
<tabber>
April Fools 2024=
 April Fools 2024 
*CoBT - Citadel of Broken Tables - High-Peak Nil(extreme) (14.81)
</tabber>
* CoBT - Citadel of Broken Tables - High-Peak "Nil" (14.81) (actually difficulty is High-Peak Extreme (9.81))