There is a thing where if you just do some crazy movement you can skip a whole part for some reason, I would classify this as a "glitch" so maybe we can add a category that doesn't do this?

It is not a glitch, but I am aware of another one that is a glitch. Because there are so little glitches, I will not be adding a glitchless category. What you see is jumping high enough so that when you flick your character sideways, their foot gets stuck in a brick and it pushes them outwards. The other trick I am aware of is on level 9 using a wall hop which is a glitch though.