Here is the full list of all 21 Zero Reflex : Black Eye Edition achievements.
Collect 100 pickups.
Complete 5 consecutive non-easy levels with only 1 life remaining)
Complete the game in normal mode.
Complete 5 levels with sounds and music muted.
You have completed a level moving only counter-clockwise!
You have completed a level moving only clockwise!
You have been playing Zero Reflex for 300 seconds!
You survived a level without any pickups!
Complete 5 consecutive levels without any mistakes.
Complete 3 consecutive levels without any mistakes.
Pass a level without taking damage.
You have successfully died!
You have dared to touch the Eye!
You have died 100 times!
You have been killed just 1 second before finishing the level.
You have been killed in the first 3 seconds of the level.
Collect 100 shields.
Complete 10 consecutive levels without any mistakes.
Complete 20 consecutive levels without any mistakes.
Complete the game in hard mode.
Complete the game in nightmare mode.