Here is the full list of all 19 bit Dungeon+ achievements.
You have Died!
collecting all brown elements
Block 2000 damage with shield.
Loose 30000 life points
Kill 8000 enemies
Die 50 times
Kill 3000 fiends
Kill 40 Bosses
Loose 70000 life points
Block 5000 damage with shield.
Collect 2000000 coins
Collecting all blue elements
Collecting all red elements
Collecting all Final Boss elements
Collecting all gold elements
Collecting all green elements
Collecting all black elements
Collect 7000000 coins