Here is the full list of all 24 Fingered achievements.
Beat Day 14.
Live and let Jon Evans die.
Execute a sticky suspect for property damage.
Execute a hemaphiliac for feticide.
Execute a diabetic for looking funny.
Execute a flamboyant man for littering and sound pollution.
Execute a suspect for ass****ism.
Execute a woman who is too clingy for violating trademark.
Execute a slimy suspect for peeing in pools.
Execute a fishman for lurking by a murky lagoon.
To win the game, you must kill me... Edmund McMillen.
Execute a man for ruining toothbrush mustaches.
Execute the head of the family for playing bad music.
Electricute Matthias Bossi 'til he's dust in the wind.
Execute someone who has already been buried for pseudocide.
Execute a cry baby for matricide.
Execute someone who smells like copper for trespassing.
Beat Day 7.
James Id: Too weird to live, too rare to die.... but it was worth a shot.
Beat the game.
Execute a cursed man for bestiality.
Execute a suspect for coprophilia, self-mutilation and assault.
Beat the game without using a continue.
Complete 100% of achievements.