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