Someone mentioned somewhere (in the IRC I believe?) that you need to use a damage boost in pirates fortress to get past the wall to the left of the door to the hookshot now.
I just did a sidehop as zora link and grabbed the ledge. just barely made it.
Also:
https://dl.dropboxusercontent.com/u/6440063/mm3d/snowhead%20shortcut.jpgWe can now skip most of snowhead.
Use hookshot to get up to fire arrows.
Long jump + jumpslash as Zora to get past the gap up to the top floor.
TSC past boss door.
To TSC past the door, align yourself so that your 3rd sword slash just barely manages to hit the boss door at the very end of the slash, this will push you right back into the corner, then press A. you will clip and stand inside the wall. After that, just sidehop into the loading zone.
Goht seems to be weak against Fire Arrows, they put him on fire and everything (I honestly have no idea if this was the case on N64, I figured I'd just use the dungeon item to hurt him). Killed him several cycles faster than punching with goron.
Also, he can stop and shoot lightning at you, though it does not seem to happen nearly as much.
Edit:
I assume people already know this, but you can get up the canyon without Ice Arrow.
You can just stand on one of the wooden pillars and long jump over to the opposite side, then hookshot your way up.