Here is the full list of all 11 Prison Chainball Massacre achievements.
Become black.
Reach Inmate #100.
Unlock all chainballs.
Unlock all bonuses.
Reach 10 kills with a basketball while being black.
Reach x10 combo.
Have 10 golden enemies at screen at once.
Reach wave 10
You disabled blood, you pansy.
Finish the tutorial.
Change the color of your outfit.