When you spawn into a level you are slightly above the ground. It you press jump the frame the level loads, or hold jump as you pass this time, you are able to input a jump before you hit the ground. This is displayed in the current Level 30 IL WR to skip the entire thing, https://www.speedrun.com/jelly_escape/runs/y2gv6njz. I am unsure is this has use elsewhere but the run had been bugging me for a long time but now I figured it out.
I finally got Jelly Escape to work in libTAS via Ruffle. So I am gonna make an Any% TAS. I just finished the Blue Levels so here is a WIP display. Maybe it will breath some more life into the rta scene. Maybe not, but it will be fun regardless.
I'm currently working on a TAS of this game and I found you can press the reset level button before the Loading animation finishes to get control ~30 frames, or 1 second, early. So if anyone is still running this game, have fun with Free World records. I don't think any of the current WRs use this tech.