This run is Tiralley, not Stair http://www.speedrun.com/run/9mr7dogz

Also, I've noticed several of Maaster's runs that have weird cuts in the video. Don't know what it is.

For example, this one around 10 seconds in: http://www.speedrun.com/run/9me32e0z

This one, about 8 seconds in: http://www.speedrun.com/run/8yvr78oz

I just noticed there is a katana only submission under "hacker" by mistake, the run is actually on the level "Fall". (there is no hacker level for katana only)

http://www.speedrun.com/SUPERHOT/Hacker

P.S. is there a way to directly message the mods about stuff like this? I haven't been able to find a way to PM people here (I'm new to speedrun.com)