Kinda catching up on this game. Do you guys have a discord?
Legend: in the TAS we're clipping through the right wall at the very start of 2-1 and cut a tiny corner, and turns out you need to be facing away from that diagonal wall to really get into it, while also diving down. Optionally hold the direction towards that wall at some point maybe.
In this particular place tho, I was able to dive-clip through that diagonal white wall while the fan was still on, and I clipped sooner maybe because I double-jumped for height before that, but I needed a damage boost while inside the wall so that I could double-jump again and fly far to the right, otherwise I just fall back in-bounds. So I had to disable the fan because it creates a damage box for it, I clip, get hit, hit C to regain control and fly right a little bit, then I get hit again and hit C again to really fly to the right. Dive in the end obviously. As you can see, floors are sticking right a bit, so I need to be even farther right.
Legend 2: was just watching Cypherin's guide and he mentioned he clipped through the entire level somehow. I had no idea where but this looks like the only useful place?