Here is the full list of all 26 SUPERHOT VR achievements.
100 shotgun kills
Punch a single guy at least 5 times in a row
all levels complete
100 melee weapon klills
100 uzi kills
killed 3 guys with double uzi shot
Kill 100 Red Dudes with a pistol
Used Mind Wave for the first time
thrown 100 things
Dodge 4 bullets at the same time
Kill an enemy while not looking at him
You are prepared now
completed challenge Better
completed challenge Faster
spent 6 hours within the game
Finished all challenges
completed Harder challenge
Completed game laying on the floor
Kill 3+ enemies with one burst while dual wielding uzis
Complete 10 min challenge
Complete NoDeath challenge
Cut few bullets using a knife
Complete Speedrun GameTime challenge
Found every secret in the game!
Complete the game in one sitting
Complete NoGuns challenge