Sega Rosso

Merged in 2003 — became Hitmaker

Sega Rosso was a development subsidiary of Sega created with members from an in-house department titled Amusement Machine 5 Research & Development(AM5 R&D). It was later absorbed by another subsidiary, Hitmaker. Hitmaker was later shutdown and reorganized back into an internal Sega R&D structure after Sega's merger with Sammy in 2004.