How about having a 0 % category in totk?

The 0% has already been done so it would be a good idea.

O%?

What

Basically, it is the opposite of max%. This means that you would collect as few things as humanly possible in the game. The leaderboard prioritizes number of "things" collected and time is judged after that. A good example of this kind of run is low% for twilight princess where the run takes like 16 hours. As good as this category can be for other games, it probably wouldn't be the best for this kind of game because runners already try to collect as little as possible to complete the game faster.

There's a video of Timber on YouTube of him finishing the game with 0%

yea but it takes ages with the set up and stuff

There's a thread in the discord server discussing Low%, which is basically the same concept (still an unofficial category). Feel free to head over there and join the discussion if you're interested, if enough people show interest / run the category, it could be added to the leaderboard.