Here is the full list of all 26 SUPERHOT achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Beat all Challenges.
Unlock all endless levels.
Get RED ending in every level of SPEEDRUNrt challenge.
Find all secrets.
Launch every app in the system.
Become part of the community.
Upload a replay on killstagram.com
Get RED ending in every level of SPEEDRUN challenge.
Kill over 1987 Red Dudes in endless mode.
Kill 2 Red Dudes with one katana throw.
Cut bullet with a katana.
Kill 100 Red Dudes with a rifle.
Kill an enemy by jumping on him.
Kill 3 Red Dudes with one shotgun shot.
Kill 100 Red Dudes with a katana.
Kill 100 Red Dudes with a shotgun.
Kill 3 Red Dudes with one rifle burst.
Complete the game.
Kill 100 Red Dudes with a pistol.
Get back to the system after being expelled.
Score 100 headshots.
Kill 100 Red Dudes using melee.
Complete SERV level.
Shoot down a bullet with a bullet.
Complete SUBWAY level.