Positron

positron inc. (株式会社ポジトロン) Made up of former Namco and LightWeight staff, including Yoichi Hayashi (Yo1 Komori), Norimasa Matsuura, Naohito Hanai, and Tomohiro Maruyama. Was an affiliate company of Square until a stock transfer in fiscal year 2000. [1]

Research Methods: Actual mentions, shared staff

Dreamcast

• Prismaticallization (programming) (JP Publisher: Arc System Works)

Sound Data Conversion: Brainstorm

Mobile

• Nana Ken Monogatari (programming?) (NTT Docomo) (JP Publisher: TinMachine)
• Ruin Explorer (programming?) (NTT Docomo) (JP Publisher: TinMachine)

PlayStation

• iS: Internal Section (JP Publisher: Square)

Production: The 8th Production (Square division); Sound: Arika

PlayStation 2

• Guilty Gear X (some programming) (US Publisher: Sammy; EU Publisher: Virgin)
• Guilty Gear X Plus (some programming) (JP Publisher: Sammy)
• Gungrave (programming, some planning & scripting) (JP/US Publisher: Sega; EU Publisher: Activision)

Production: Red Entertainment; Graphics & Game Design: Ikusabune; Some Art: Kusanagi; Sound: SuperSweep, Sisworks

Windows

• Typing Mahoromatic (programming?) (JP Publisher: Gainax) [2]