Here is another one that is pretty tough, but doable:

(Jump, press left for as little time as possible, then right): repeat until you enter the wall entirely.

One other thing: if you shoot Fireman with the gun, you can save quite a bit of time on that fight,

It's been so long... I'm not sure I remember exactly how I did it. If I remember right, it involved doing some jumps back and forth as you slash him. I would have to really test it again.