Here is the full list of all 17 Neon Space 2 achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Collect 50 medals
Get 50 gold medals
Finish game
Get 10 bronze or better medals
Get 10 silver or better medals
Get 10 gold medals
Use slow skill 50 times
Finish maze level
Use blink 50 times
Use slow skill 15 times
Use blink 15 times
Use slow skill 5 times
Use blink 5 times
Use blink once
Use slow first time
Die once
Finish your first level