Here is the full list of all 36 Dark Roll achievements.
Destroy 10 vases in total in Endless Roll.
Play Endless Roll for 30 minutes in total.
Reach phase 3 of Endless Roll without touching any mushrooms.
Complete all the levels from "World III".
Make Xander hurt himself with his own attack.
Hit "Bob the Scavenger" in the head. Hard.
Make it to the phase 3 of Endless Roll.
Bump once into every kind of mushroom in Endless Roll.
Complete all the levels from "World II".
Die for the 50th time.
Complete all the levels from "World I".
Collect 250 gems in total.
Make it to the phase 2 of Endless Roll.
Jump and collect all the gems before touching the ground.
In Endless Roll, during one game, remain close to Fire Portal for 30 seconds in total.
End up shattered to pieces for the first time.
Complete "Level 3: Path" without jumping.
Let "The Randomizer" pick your skin.
Collect 50 gems in total.
Fall into the abyss for the first time.
Finish the tutorial.
Complete "Level 6: Platforms" in under 30 seconds.
Complete "Level 8: Crevice" jumping no more than 5 times.
Complete "Level 11: Ruined Manufactury" starting the clock only once.
Complete "Level 13: Bomb Factory" without blowing up the wall.
Defeat "Bob the Scavenger" without starting the fire.
Defeat "Bob the Scavenger" without jumping.
Complete "Level 9: Ring of Death" jumping no more than 3 times.
Collect 1000 gems in total.
Complete "Level 16: Mausoleum" without making a mistake.
Complete "Level 17: Graveyard" after agitating 15 or more ghosts.
Hit Xander in "Level 18: The Castle".
Complete "Level 20: Throne Room" after avoiding at least 30 of Xander's attacks.
Make it to the phase 4 of Endless Roll.
Collect 15 gems during one game of Endless Roll.
Complete Level 20 without Baby Mode turned on.