Here is the full list of all 31 Sinless achievements.
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Get a score of 12000 in Ghostface
Not dress properly
Beat the game
Complete the third act
Use a levelhack
Fix the cyberslut
Get a Prog pro
Complete the second act
Use a prog hack
Fix Poochie
Have a "dead end" conversation
Get something from Anne
Complete the first act
Look at yourself
Get a cornbun
Get 30 kills in mojojoe
Get 10 kills in mojojoe
Be annoying
Check out the picture
Pop the Prog
Check newsfeed
Look carefully
Change the light
Lose
Get a score of 5000 in Ghostface
Play ghostface
Get a pearpod
Get an apple
Make bed
Start the trip