Hyperdimension Neptunia is a video game series developed by Idea Factory and Compile Heart that features a wide array of fictional characters originally created by Naoko Mizuno and designed by Tsunako and Minamitsu.
The original game centers around Neptune, one of four goddesses who adventures in a world where she can recruit other characters to form a party.
She developed Neptune as a parody of the game industry with the fictional scenario where Sega was still attempting to reach the top of the console business.
In looking back at the games, Mizuno said that she would have like to have had the characters fully voiced, but that the editing in of new scenes and content made that impossible.
"[4] Mizuno created a new group of main characters for Mk2 in response to the moe subculture trend, especially the concept of the younger sister.
Kochiwa has remarked that working on Neptunia not only from the art and game system aspects, has affected Compile Heart's other titles.
Onodera said "Being able to observe and learn how people from a different industry handled things like direction, script-writing, building tension, plus visualizing characters and their personalities helped me to see what was lacking in the original Neptunia."
The Console Patron Unit (CPU) is a goddess character in the world of Gamindustri, each of whom is named after a video game system and is charge of a domain.
"[9] Simon Parkin of Eurogamer disliked the game's plain sexism and innuendo: the "characters make lewd comments with all the awkwardness of a children's TV presenter telling a dirty joke.
"[44] Matthew Razak of Destructoid found the characters "devolve into no more than slightly veiled references to cultural gaming cliches.
[2] In reviewing Mk2, Matthew Bennett, associate editor of Electronic Gaming Monthly critiqued Nepgear's character "Instead of four powerful and beautiful heroines we’re left with one pre-pubescent girl who’s suffering from a severe case of schizophrenia, never quite sure if she’s saving the world, or writing a Dear Diary entry."
"[24] Idea Factory business developer Damien Urvois, in promoting the Re;Birth version of Neptunia said that "Nowadays, the demand for moé is quite high overseas, so, we must quickly release the main titles.