This seems like an interesting game to speedrun and I am wondering how to begin. Currently I am just trying to finish the game casually and then I am going to try for a+ times, is this a good way to begin to speedrun this game.

Can anyone tell me how to get the different hallways, and what the endings are. Also a large map of the choices required for endings would be awesome. Also can there be a category for being stuck in portal.

This is not mentioned in the rules so are they allowed.