Noticed this accidentally while trying to run follies.

If you dash or move forward ~300 - 320ms (yes I actually tested this with a script) after a jump to a ledge, you will "clip" under the ledge. This is fairly difficult to do perfectly each time, as it's just a tiny bit before a full jump.

After clipping, I tested spam-dashing a bunch of times, and the results were usually cuphead scrolling across the screen at faster than usual speeds, and then getting thrown back up. In rare cases cuphead was actually sent backwards before being tossed upwards.

I think this could be incorporated into at the very least follies to shave off some milliseconds in at least two places (since noone runs the other RnG levels in Any%), but probably not much more than that since you will take damage from the fall unless you combine it with the smoke grenade glitch (in which case someone better than me should test chaining ledges to scroll past the level at super speeds, but that sounds more like something a TAS would do than an actual human).

Cheated like my other post (turbo weapon swap) so no submission. Doable legit though. Uploading so someone can incorporate it into a run because I am a baddie. Probably requires good RNG (no seadogs and good bullet timing on the first part).

Credits to Wellisso for actually discovering you can hug the boat at the end. It looks like the hitboxes for the orange flasks are really small so you can be pretty liberal in dodging them.

I figure I'd post this here because it should be doable normally.

I won't actually be submitting this because it's cheated. I used a Turbo Controller for the weapon swap, Ultrawide mod on the executable so I can see hitboxes easier and tell when Grim Matchstick disappears off the right side, and had HP info open (though I didn't need to pay attention to it for this one). 00:35 and maybe a little faster should be possible if you time your EX to fire Roundabouts the times I used Lobber EX and avoid losing DPS to getting hit.

EDIT: Got 00:35.97s after this, displayed as 00:35 in-game.