Here is the full list of all 21 Bad Dream: Coma achievements.
Accept his help in hospital
Bad Ending
Death's Messenger
Victim of its own mistakes
Take the unwanted job
Be the change you wish to see
Thank you for playing :)
Visit the hidden room
Use the special bait
At some point it was a bug :P
Don't let the boss kill you!
Make a dog happy
Edit my game
Time to grow up
Make a special call
Visit higher floor of hospital
Use the scissors to get the button
Don't take any damage
Shiny reflection
Get the camera on the graveyard
End the game with the dirty cursor