|Age||12 through 16 (High Score Girl)
|Anime debut||Round 2|
Onizuka Chihiro is one of the Elementary School classmates of Ōno Akira and Yaguchi Haruo. She probably is the most ugly girl in school but she seems to be close to Doi Genta's group as they're seen hanging around oftenly.
Later in the story, she also attends the same Middle School as the main characters.
Her family name Onizuka (鬼塚) means "demon mound". This might be a joke related to her ugliness.
She shares the same family name with Onizuka Eikichi, the protagonist of GTO: Great Teacher Onizuka, who also has a running joke about how he's an evil teacher just like his surname.
- as of Hi Score Girl DASH she is married and is good friends with Hidaka Koharu and is concerned about heras she threw the boquet at her
|Manga (Hi Score Girl - Hi Score Girl DASH) - Anime (Season 1 - Season 2) - Timeline - Translations|
|Yaguchi Haruo - Ōno Akira - Hidaka Koharu|
|Ma-kun - Nikotamagawa Felicia - Raging Girl|
|Doi Genta - Miyao Kōtarō - Onizuka Chihiro|
|Gōda Moemi - Jīya - Numata - Ōno Makoto - Shōgakkō-sensei - Tōno Reiko - Yaguchi Namie|
|Video game characters|
|Dhalsim - Gōki - Guile - Guy - Honda - Nash - Phobos - Vega - Zangieff|
|Capcom - Koei Tecmo - Konami - Ōno Zaibatsu - Square Enix - SNK - Taito|
|Airport - Candy Store - Flower Garden - Gashadokuro Game Center - Hidaka Mart - Jōran Kōkō - Marumiya Game Center - Minami Chū - Minami Shō - Mizonokuchi - Ōno Mansion - Totsuka Shop - Yaguchi House|
|Biwa - Kawasaki - Kyōto - Los Angeles - Ōsaka|
|Arcade - Famicom - Game Boy - Super Famicom - PC Engine - PC Engine GT - PlayStation - Sega Saturn - Game Gear - Virtual Boy - Neo Geo CD|
|Final Fantasy - Final Fight - Kung-Fu - Samurai Spirits - Street Fighter - Tekken - Vampire Savior - Virtua Fighter - Yie Ar Kung-Fu - Karateka|
|"New Stranger" (OP) - "Hōkago Distraction" (ED)|
|Oshikiri Rensuke (mangaka) - Yamakawa Yoshiki (anime director) - Urahata Tatsuhiko (anime writer) - Kuwabata Michiru (anime character designer) - Shimomura Yōko (composer)|