Here is the full list of all 20 Midnight Arrow achievements.
Complete level 1.
Touch grass 1000 times.
Collect 5 candies.
Collect 15 candies.
Collect 35 candies.
Unlock the first skin.
Unlock the second skin.
Unlock the third skin.
Unlock the fourth skin.
Unlock the fifth skin.
Unlock the sixth skin
Complete the first level in under 2 minutes.
Die 569 times
Complete the second level in under 3 minutes 30.
Complete the third level in under 4 minutes.
Complete the fourth level in under 5 minutes.
Complete the fifth level in under 7 minutes 30.
Complete the sixth level in under 6 minutes.
Watch the last Midnight Arrow dev log on my Youtube channel (Low Level Game Dev) to find out about this achievement!
Complete the game