Here is the full list of all 17 RASPBERRY MASH achievements.
Kill the Big Pigman
Kill the Gigantes
Kill the Faces
Kill the Cyaegha
Kill the Thanatos
Kill the Death Chaser
Kill the Buffer
Kill the Ouroboros
Kill the Epsilon
Achieved bingo for the first time
Got the all artifacts
Learned Dodge Roll
Learned Electrification
Learned Hacking
Get the heart of Eno
Unlocked Soul Boost for the first time
Unlocked all Soul Boosts