The story is about a boy named Mark (in Japanese as Hiroshi) who walked home after a game of baseball sees a bright star and as he continued to see it began to grow larger until the star fell, after that He showed that he was not a star but a creature. That creature is a garlo named Bert (in Japanese like Varyuu) that seeks help to save his world from a chaos that is provoked by evil monsters, he asks Mark to help him but Mark did not want until Bert tells him that anyone can Mark and that weapon (bat) could defeat them. Mark tells him that it is not a weapon but a bat. Then Mark accepts and Bert takes it flying, on the way Bert tells him that his world is dangerous if he fights only for what who tells him that they must work together, and so Bert and Mrak merged and Mark's adventure begins.

Elvira, Mistress of the Dark, the horror hostess played by Cassandra Peterson, stars in this hack of Bandai's Monster Party for the NES / Famicom.

With a flaming sword to deflect attacks (like a baseball bat), and the ability to transform into a bat-winged (and bat-throwing) monster, Elvira "the Queen of Halloween" is ready for action! So batter up and fight through eight stages in a parody world filled with familiar movie monsters.

The player character has been replaced with Elvira, Mistress of the Dark, who also appears in the intro and outro cutscenes with new text. Boss text has also been altered.

This is based on the restoration and translation of Parody World Monster Party, released by Stardust Crusaders.
http://www.romhacking.net/translations/3115/

Concept, player graphics and title graphics were created by Sil3nt_J.

Various graphics, text and Romhacking by Garrett Gilchrist (tygerbug).

This is a patch for Monster_Party_(J)_(Prototype).zip (256 KB)

She's ghoulish. She's glamorous. She's Elvira, Mistress of the Dark. And she needs your help! So batter up and battle through eight challenging stages in a parody world filled with familiar movie monsters. With a flaming sword to deflect attacks, and the ability to transform into a bat-winged (and bat-throwing) monster, she'll drive you batty. The horror hostess with the mostest is ready for action! We hope you are too! It's an adventure that's so funny it's scary. Only from Bandai on your Nintendo Entertainment System.

Database match: Parody World - Monster Party (Japan) (Proto)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: ADAFE6E0EABA88B69F4991B7B78F7AA47D643151
File CRC32: BBCA6DA3
ROM SHA-1: F1AC6A76223A63545FAE93E6F33520BAC8EE5691
ROM CRC32: 21E28F50