Everything that I am aware of. Credits to MHFsilver, hinatan_ravi, rocmox, skelekat_tv, and Rie.

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General movement speed comparison Comment: Spin jumping > Bunny Hopping > Pure Spinning > Pure Running

High Jump Comment: Hard to describe cause im not entire sure how it works myself. Basically what I do is once your dash animation ends(around when Parin stops being transparent) I mash jump as fast as I can and it will cause your jump height to increase. Seems to be a pretty tight window. This also works when running into walls in a certain way, as seen in the video below.

Nanometer Shrine Out of Bounds - Original - To door trigger - Comparison vs non-oob Comment: Running around the side of the stage is very tight. I usually just hug the wall. The trigger for skipping the area seems to be near the door. Usually running into it works.

Nanometer Shrine - OoB High Jump over Hallway Comment: No risk of falling off. Practice!

Cheery Forest Path Door skip Comment: Can be done by dashing or high jumping

Eerie Way door skip Comment: Skips a mandatory fight that is before the water area. You can do this 2 ways: 1. Jump along side the wall and ride it or 2. Simply jump over the door as it pops up. Either way the goal is to have it push you behind it.

Eerie Way Water Jump Comment: If you move into a wall while swimming the game actually jerks you up a b it then sinks you down. When it pushes you up you can actually jump and make it up. You have to jump near the peak of when youre forced up.

Eerie Way Water Jump WITH Monster Boost Comment: Faster than intended method. Slower but more consistent than using no enemies.

Sky Steps door skip

Comment: Skips a mandatory fight by going behind the door.