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