Hyperdimension Neptunia Wiki
Hyperdimension Neptunia Wiki

She m-m-must be an angel, chump! Oh Compa, you must be my guardian angel!
— Pirachu

Pirachu is a recurring antagonist in the Hyperdimension Neptunia series. Due to the Neptunia series being a game that revolves around different universes and dimensions, there are multiple Pirachu's throughout the series, though they more or less have the same personalities.

Pages related to a specific Pirachu:


Main Series

1st Hyperdimension Pirachu

Ultradimension Pirachu

Other Appearances

Anime & Manga

Hyperdimension Neptunia: The Animation


  • Pirachu's name is a reference to Pikachu. But the "Pira" may come from "Pirate", which is the act of illegally copying a game, movie, or any sort of licensed media.
  • Pirachu's Japanese name "Warechu" may come from "Warez", a slang term for pirated software.
  • Pirachu is one of the few characters lacking a physical change between games.