Here is the full list of all 20 ZeGame achievements.
Complete world 1.
Get zero deaths on all levels from one world.
Die 100 times.
Play a total of 3 hours.
Finish all default levels.
Finish all blind levels.
Finish the last level under 30 seconds.
Download a level pack.
Publish your own level pack.
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Take a shortcut.
Finish a level after waiting for a long animation.
Play a total of 10 hours.
Finish all levels with 3 stars.
Finish all blind levels with 3 stars.
Finish all levels with zero deaths.
Finish all blind levels with zero deaths.
Die 30 times in the same level.
Finish 100 custom levels.
Idle in the main menu for 10 minutes.