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