- "When Game Genie doesn't help, you know you're fucked!"
- —The Nerd
Game Genie is a unofficial cheat device used by the Nerd in NES games. Sometimes, it can't be useful, and might make the situation worse.
- OXXKPVK: Ghosts immunity (used by the Nerd).
Frankenstein: The Monster Returns
- SXKELLSA: Almost unlimited energy (used by the Nerd)
- SZKEPASA/SZEGPASA: Invincibility after losing first life
- PEOGYPLA: Start wth no continues.
- SZEEULSA: Can not collect extra-energy
- EEKAYLEL: One hit is fatal
- SZETPGVG: Infinite lives.
- AAUVLIZE: Start with 9 lifes.
- IAUVLIZA: Start with 6 lifes.
- AAUVLIZA: Start with one life.
- AEXVVYIA: Infinites windmills.
- AAETUYIA: Unlimited fire-wheel
- AAVTNYLA: Unlimited Shuriken
- APEIKGTA: Maximum strength.
- SXSNZTVI: Inifinite lifes (used by the Nerd).