Japanese. Lots of games use Japanese versions for text because Japanese words/characters tend to be shorter than English. For a game like OOT it's a necessity, but there are some games like SM64 where Japanese only saves 5 seconds or something in 120 star.
I use Nestopia for NES games. Most NES emulators are fine, some are banned due to being inaccurate.
I was referring to the Chinese iQue version of OOT that Cosmo used a while back
Fucking iQue... I have no idea what is going on with any% these days. The 100% route has had some big changes recently though, it changed completely into a new route that was the fastest for about a month. Then a glitch was found on VC that made VC faster, so they started running that, and now there is a new VC route that is different.
It's no wonder that they don't get a lot of top players coming out of nowhere. It's almost like its necessary to know every single thing there is to know about the game and constantly be active to keep up with the changes.
What are you playing on? Is there a speedrun-sanctioned emulator? I heard some OOT players play on a Chinese console version because the text scrolls faster or sunbathing