If you don't like to play the same map over and over to get some of the achievements, you can use my save file to get the challenge achievements. All of the challenges are completed and all of the endless levels are unlocked.

Save File Location:
"C:\Users\<Username>\AppData\LocalLow\SUPERHOT_Team\SUPERHOT\super.hot"

Save Files:
https://drive.google.com/file/d/1W7tqeE2dSd6aNBpmM-Cfj81NnRclinxH/view?usp=sharing