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