Basically i'll explain how to do the All Achievements skip that allows you to skip the entire zone 3 of the speedrun.

This trick was first used by IvGromov in his former world record 20:52 run you can check it out. The trick is, he creates a level, then enters it with 1 enemy, uppercuts the enemy off the platform and pauses the game when the enemy died, then he presses settings and resets the run.

Somehow in the backround plays the animation for beating Hypergon and you get the Chaos Kudos badge therefore the name "Chaos Kudos Skip"

So this is how he managed to perform it.

It is not necessary to create your own level although it does help to get the kill easier. Then you enter the level with preferably one enemy. After that you uppercut the enemy off and now starts the hardest part, you need the enemy to fall so low to the ground that you can't see it anymore, but you haven't won yet. So right as the enemy is under your games view you need to press SPACE to pause the game, if your games screen encloses a little you have managed to complete the hardest part, next simply press settings and reset there should pop up an animation in the backround of the game where you can see Hypergon dying.

Also just to mention if you don't know what to do afterwards ( i didn't ) just try to press somewhere in the middle of the screen there should be a button that gives you the rewards from the achievement and then the game unfreezes and puts you back into the menu.