I personally don't like level 7. There's this one single platform skip that's barely possible, and sometimes I miss it, which kills my run.

when i used to do 16 level skips runs, i absolutely despised level 10, because i found it hard to get up the slanted platform doing the skip and i would always lose good runs there

level 4 and 11

Level 4, 6, 7, 9, 10, 13, 15, 27, 29, 30, and 31.

BUP Is that you?

I find that most of my run killers are at the first 5 levels because I try to optimize them too much. Also, 27 and 29 ruined a deathless all levels run I had a few days ago.

13. Anyone else? No?

Right now 10, because I never really learned to play it skipless since the skip was so easy, and I haven't learned the new skip yet.

29 because jumps are hard to pull off when i go to quick (but if i take time i can because i have beaten it before on impossible version)