Here is the full list of all 18 8-bit Adventure Anthology: Volume I achievements.
Killed by the warlock
Killed by the werewolf girl
Break a mirror into space
Fall to your death after the troll removes the bridge
Wait until the dragon breath gets through your shield
Set yourself on fire with a torch
Eaten by the spider
Die from amnesia
Try to rob the gun store
Shot by the lady in red
Blown up in a car
Shot by the mugger
Eaten by the sewer gator
Consumed by the evil spirit from your sister
Drown in the bathroom
Carry the ruby until it posesses you
Killed by the Belle
Don't leave the car until it burns