Here is the full list of all 26 Cucumber Blues achievements.
Aim
It's Boss
It's Cucumber
It's Door
Ending
Fire
House...
Interactive
Jump
Kill's
Light
Mais
Noire
Osean
Police
Quest
Revenge
San Vegano
Time
UpStairs
Vendetta
Weapons
Weapon X
Year
Zzzzz
Game