A detailed how to guide on completing all the Achievements for The Corridor. Includes videos for each Achievement.
Reverse Psychology

Resist temptation.

Have a peek. Why not?

Push one hundred and fifty six fake buttons.

Go to the edge.

(Don’t) take the shot.

It can’t always be *me* closing the game, right? Pull your weight.
(Just leave the game without pushing the button)

Do as you are told.

I prefer red grapes, personally.

No really, thank you.
(Don’t pull the save plug, listen to the narrator until the end)

Obtain all other achievements.
Thanks to Ruke for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.