The project re-imagines various Sega video game consoles as anthropomorphized goddesses who appear all over modern Japan.

A crossover video game with Idea Factory's Hyperdimension Neptunia franchise, Superdimension Neptune VS Sega Hard Girls, was released for the PlayStation Vita in Japan in November 2015, and in North America and Europe in October 2016.

A crossover game with Compile Heart's Hyperdimension Neptunia series, titled Superdimension Neptune VS Sega Hard Girls (超次元大戦 ネプテューヌVSセガハードガールズ 夢の合体スペシャル, Hyperdimensional War: Neptune's Platoon vs. Sega Hard Girls: Dream Combination Special),[7][8] was released for PlayStation Vita in Japan on November 26, 2015[9] and later on released in North America on October 18, 2016[10] as well as Europe on October 21, 2016.

SeHa Girls, which was produced by TMS Entertainment using the MikuMikuDance animation software and directed by Sōta Sugawara, aired in Japan between October 8[13] and December 24, 2014 on Animax and was simulcast by Crunchyroll.

sung by Dreamcast (Mao Ichimichi), Sega Saturn (Minami Takahashi) and Mega Drive (Shiori Izawa).

The ending theme is "Wakai Chikara (Sega Hard Girls Mix)" (若い力-SEGA HARD GIRLS MIX-), based on the Sega company song "Wakai Chikara",[15] sung by SC-3000 (Mai Aizawa), SG-1000 (Yū Serizawa), SG-1000 II (Naomi Ōzora), Game Gear (Minami Tanaka) and Robo Pitcher (Haruna Momono).