- The entire anime itself reeks of the fuel smell; it's only made worse in the end with showing what happens to "disappeared" loser girls of the fighting tournament.
- The tournament itself: the winner gets a reward, yet every loser is mind raped and made into a Sex Slave.
- Seeing all of Aya's past opponents brain dead, completely mindless just doing stuff not knowing or caring why. The whole scene is pretty disturbing.
- Also Aya killing Ryu and continually punching her dead body.
Nightmare Fuel / Master of Martial Hearts