SUPERHOT core mechanics applied to classic UT, with time moving only when you move, dodgeable projectiles and visuals based on original SUPERHOT.
Public beta before final release on last day of #makeitsuperhot contest.
Place all the files inside your "UnrealTournament\System\" folder.
Start a practice session and add the desired mutator to play the mod.
The mod is NOT compatible with multiplayer, so only use it on Botmatches.
If the game doesn't become slower when you stop, it's probably because your UT is running on a much higher frequency than the engine supports.
Possible solutions would be turning VSync on, or using an alternative executable of the game to make it run at correct speed (search for unreal tournament multicore fix).