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