While doing my first session on this game, I was able to do a glitch which makes the character much faster than he's supposed to be.
https://www.twitch.tv/mstruffles/clip/GleamingFineStarMikeHogu-w0gnnrTjfJXbsDJ_
I don't know how I managed to activate this glitch. The only things I know, are that it carried through every resets I did, and the only way to deactivate it, was to restart the game. I'll try to find a way to replicate this glitch whenever I want to.
Since it's not known how to replicate this glitch consistently, and since it changes the pace of the run drastically, I made a miscellaneous category named Speedglitch%. Consider it as a fun/meme category. Feel free to submit runs in this category. I'll probably submit a run in this category someday.