One of the characters frequently mentions being "oiled up" and referencing "Diddy".
Killed characters spawn body sized blood pools.
Several times, a character is shown to be retching, and possibly off screen puking.
It is noted in dialog that the school does not stock any alcohol.
A character gets drunk, except it's very clearly stated that it's on non alcoholic sodas.
A key reoccurring scene is the player being required to execute defeated opponents. This is done in a high contrast scene with a red background and mainly black colors, while a pulsing droning sound is played. The killing blow is shown and the selected character is shown to be disturbed by what they've done.