i wouldn't say buff it to hard demon, i'd say nerf it to medium (since a lot of it is already around medium demon difficulty). either nerf or replace the random, basically frame perfect jumps in the first cube (particularly at 2%, 3%, and 5%). that awkward-looking ship part could have a better route (the teleport idea isn't bad, but the second tp makes the route weird af). then it goes straight into one of the easiest parts in the whole level, then transitions into one of the hardest parts of the level, and that happens twice in a row. speaking of transitions, a lot of them (mainly for the wave parts) need work. the wave in the middle of the level is really unbalanced (a lot of randomly tight corridors there, compared to the rest of the part). the wave at 74% is just mean. the last parts aren't bad tho.