I dont want to seem pushy here, but what if I told you that getting the 5 blue skulls on level 1 to finish it wasnt required? Looking into it right now, but I almost reached it and think that with proper timing it will be possible. Could save up to 10 seconds or so due to inconsistent combat.

@THECAKEISTALKING its a thing!!!

Bridge skip (or Cake skip) can be done by using the bounce pad to land on the wall next to the gap and jump off then grapple boost all the way to the other side and you can barely make it!!!

edit: it is very precise though and I have only done it once.

A video of me hitting the skip in a run: