Keiichi has done the following roles in games.

Black/Matrix [Sega Saturn]	Yuda
Black/Matrix AD [Dreamcast]	Yuda
Burai II: Yamikoutei no Gyakushuu [PC Engine]	Lee Shanon
Bushidou Blade 2 [Playstation]	?
Doukyuusei 2 [Sega Saturn]	Ryuunosuke's father
Free Talk Studio [Sega Saturn, Win95, Playstation]	Fujita Kei
Free Talk Studio [Sega Saturn, Win95, Playstation]	Tajima Kazunari
Guilty Gear [Playstation]	Axl Low
Guilty Gear Isuka [Playstation 2/arcade]	Axl Low
Guilty Gear X Plus [Playstation 2]	Axl Low
Guilty Gear X: By Your Side [Playstation 2/arcade]	Axl Low
Guilty Gear XX Accent Core [PlayStation 2]	Accel
Guilty Gear XX Reload [Playstation 2/arcade]	Axl Low
Guilty Gear XX: The Midnight Carnival [Arcade]	Axl Low
Hokuto no Ken [Sega Saturn]	Bat
King of Fighters '97 [arcade]	Andy Bogard
King of Fighters 2001 [Arcade, Neo Geo]	Andy Bogard
King of Fighters EX2: Howling Blood [GBA]	Andy Bogard
Monster Maker [PC Engine]	Walken
Popful Mail [PC Engine]	Belkfrit
Toushinden 2 [Playstation]	Kaos