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