https://www.youtube.com/watch?v=yPvlNbznUNE
At 24:40 in the current TAS, I think time was lost. I’m watching
http://www.twitch.tv/ikkisoad stream his first random TAS attempt, and he did something that I think was faster. He started the up-dash far earlier, and clipped against the roof, which pushed him outward next to the wall, which allowed him to walljump. He didn’t kill the enemy, but jumped above it and did the whole thing in a single jump.
There are probably other wallclips like that in the game which I think would save time. Something to keep in mind.
Edit: I’ve seen from another guy a strategy for the boss at 9:00 that could give a 3-cycles. Basically you need to get the red orb at the top, and you can shoot it in such a way that the boss gets hit by both the box thing and a rotating red pellet from your charged buster shot.
I was also thinking maybe you can get 2 boxes to hit the boss if you get them at the correct height and they hit on the same frame, but I have no idea.