Here is the full list of all 13 Neon Junctions achievements.
Сomplete the game
Complete the secret level
Complete the twenty-eighth level
Complete the twenty-first level
Finish the level in under 20 seconds
Spend three minutes to complete one level
Complete the fourteenth level
Restore electricity
Complete the seventh level
Collect 99 cubes
Complete the level with 49 cubes
Die
Complete the first level