The art style in the game is very cool and minimalistic while actually serving to make the game easier to understand and play. The gameplay in Superhot relies on you being able to react properly to your environment, and the art choices make it really easy to understand what is going on around you.
The coolest thing about this mechanic is it essentially lets you role play matrix-like battles with you dodging bullets, slicing bullets out of mid-air with a katana and an assortment of other badass things to do.
Like a lot of stealth games, all it takes is getting enough distance from a guard to make them forget they ever saw the player. This pulls the player out of the immersion of the game seeing such a non intelligent A.I.