I want to do some ILs and figured I might as well start with 1-1, so what important glitches/tricks should I know?

Sorry for such a late response. (I honestly dont know how I missed this message)

There are a lot of glitches and tricks in this game and many are somewhat hard to explain, but I can give a jist of important tips to learn. In regards to IL's and tricks you might need for them you can get an idea by watching the IL's I posted. My movement is a bit sloppy as im not the best at platformers, but I did glitch hunt a lot in this game and have a good overall route. The primary techniques to get better at involve dodging enemies while maintaining a lot of speed through a zone. This can be pretty difficult because when enemies render on the edge of the screen they attack pretty much the same way assuming you run onto the screen towards them at a similar speed. So micro stops or jumps into microstop attacks are all over the place in movement. Due to NG+ having spear throughout the game you can use Down+Attack in the air if I recall correctly to do an invincible air attack that stops you a bit but then moves forward. This is a good alternative in places where you would otherwise have to wait too long and can be used on reaction to dangerous anti air attacks that can lose a lot of time. Another thing to note is that rocket off objects like poles deals considerable damage compared to punching but meter gain in this game is based on amount of hits so its much faster to kill this way, but if you need meter for certain tricks it can be better to line up two guys and attacks them both with a basic string of attacks instead to build a lot of meter. Up+Attack will Headbutt the enemy with Gum Gum Bell and this has 4 damage I believe versus just 1 from normal attacks. This is useful for a lot of strategies on bosses, but be warned its slow at times and short on range so its also a little risky on some of the bosses.

In regards to glitches its a lot to go over. Essentially there are up zips and down zips. Very little Horizontal based zips. There are ways to abuse death warping to end sections like in the intermission stages to save on time. You can also skip or zip out of some forced battle zones. In the IL you have zips earlier than normal since they require certain techniques to be consistent to use. If you have further questions feel free to message me on SRC as its more likely I will get the notification!