In level 6, the big room where you need to jump up boxes to get to the room, the wall on the right can be wall dodged off, and if combined with a jitsu of fushin, you can get to the exit much faster I believe.
In Level 7, in the penultimate room where you need to wall dodge from side to side to get to the exit and fight the end boss, I was enquiring if the new glitch you discovered can be used to climb up through the left wall as that would be much quicker than wall dodging all the time. I don't know if it's possible, I was just asking if it was. It'd require a healthy amount of shurikens to do though. I don't see how a jitsu will make Zeed quicker though, neither of the two damaging jitsus affect him, and the lightning shield isn't needed because this is a TAS. (Unless I'm missing something)
Ok I watched the run. I don't know if you're trying for optimal performance or not, but for example in the first level, you ducked to slash an enemy, which wastes time. In the previous movie, he was using shuriken bursts to take them out so he didn't have to duck or stop and kill people. The goal is to get to the end of the level with as few stops as possible. I mean the first part of the first level looks slower to me than the existing run. :(
I'm not sure where the jitsu you saved against the second boss could be used really. They obviously save most time when used against bosses who have long invincibility periods, otherwise spamming powered up shurikens is the best. What I said about the water ski jump kick method for faster shuriken spamming actually works on foot as well, I just tried it myself. So that's another potential time saver, perhaps against the first boss of the 5th level among other places. I can't think of many other places that could be abused unfortunately as most bosses have a few frames of invincibility after being hit.
Oh and the way you broke the lift in level 2 was amazing, made a forced scroll segment MUCH more interesting to watch. Nice one. :D