We have seen a few TASes of Final Fantasy VI on the SNES.
This version suffers from slowdown (i.e. laggy Chocobo and airship controls)
Having B to run makes up for it and having the sprint shoes makes you go even more faster.
Various bugs have been fixed (like the vanish/doom combo and the sketch bug).
A few glitches still exist like skipping Celes (also removed the ability to put placeholder characters on your team), the airship glitch, and introduced the quicksave bug.
The most notorious of all is the poor sound quality.
If you wanna beat the game quicker I would have to go through the Zone Eater's Dungeon to get Gogo and you don't need to leave Kefka's Tower and reenter due to the
pause glitch that was seen in the most recent TAS of Final Fantasy VI on the SNES by going up an escalator going downward.
I also would like to see a run going through the Dragon's Den (which requires defeating all 8 dragons to gain access (including 2 in Kefka's Tower)) and the Soul Shrine (after beating the game).