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Under the name Hirai Riko:
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| Kortikarute | Shinkyokusoukai Polyphonica Memories White ~First Edition~ (2007 PC) |
| Latooni Svota | Super Robot Taisen OG Gaiden (2007/12/27 PS2) |
| Latooni Svota | Super Robot Taisen OG Original Generations (2007 PS2) |
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Under the name Rita:
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| Inemuri "山根-san" | Alice Parade ~Futari no Alice to Fushigi no Otome-tachi~ (2007/10/12 Windows) |
| Shin Reihou (From "Jioguramaton -Dyogrammaton-") | CloFan 3GHz CLOCKUP FANDISC [Kurofan 3GHz CLOCKUP FANDISC] (2005/06/24 Windows) |
| Tashumu | DINGIR (2004/05/21 Windows) |
| Minami Chihiro | Hapikuri -HAPPY CHRISTMAS- (2006/01/27 Windows) |
| Usami Takato | Haruharo! haru-haro!......SPRING HAS COME (2006 Windows) |
| Kisaragi Shizuma | Hinatabokko (2004 PC) |
| Kisaragi Shizuma | Hinataruto -Hinatabokko Fan Disc- (2005 PC) |
| Shin Reihou | Jioguramaton -Dyogrammaton- (2005/02/25 Windows) |
| Nikora Rokka | Katahane (2007/01/26 Windows, 2008/08/28 DVD Players Game) |
| Furoora | Katahane (2007/01/26 Windows, 2008/08/28 DVD Players Game) |
| Choko | Katahane (2007/01/26 Windows, 2008/08/28 DVD Players Game) |
| Kakyouin Midzuki | Kosupure*Tiipaatii (COSPLE*TEAPARTY) [Cosplay*Tea Party] (2004/06/04 Windows) |
| Sudou Megumi | Mame Fan Vol.1 [Tsukushite Ageru no! ~Fan Disc!] (2005/08/12 Windows) |
| Torin | Maou to Odore! -Legend of the Lord of Lords- (2005/03/25 Windows) |
| Chatta | Maou to Odore! -Legend of the Lord of Lords- (2005/03/25 Windows) |
| Oodin [Odin] | Ore-sama no Raguna-Rock (2010/10/28 Windows) |
| 月村 雅 | Towa Koku (2004/02/27 Windows) |
| Sudou Megumi | Tsukushite Ageru no! ~Datte Oniichan no Oyome-san ni Naritaindamon~ (2005/02/25 Windows) |
| Tsukishiro Hikari | Wind -a breath of heart- (PC) |
| Tsukishiro Hikari | Wind -a breath of heart- Re:gratitude (2004/11/05 Windows) |
| Ouka Toki | Yokubari Saboten (2006 Windows) |
| Sayama Misaki | Yume Miru Kusuri (2005 PC) |
