This is a tool-assisted speedrun. For more information, see http://tasvideos.org/4047M.html. TAS originally published on 2019-09-29.
Final Fantasy V is probably the least known of the Final Fantasy series on the SNES, because it was never published in the USA (PS1 port and GBA remake aside).
pirohiko improves the previous game end glitch TAS (http://tasvideos.org/3692M.html) by 3 minutes and 14.16 seconds, thanks to a new route leading to arbitrary code execution. Please read the author's comments (http://tasvideos.org/6499S.html) for more details.