Here is the full list of all 13 Prompt achievements.
Jump for the first time.
Collected every key.
Tutorial completed.
Hard levels completed.
Hardcore levels completed.
Upload a level to Steam Workshop.
Died 512 times on a single level.
Beat every level in the game.
Completed the full run challenge. Wow!
Some things are best left undiscovered...
Use the editor while green tint is on.
You have way too much time on your hands.
Best the developer in all timed challenges. Congrats!