SPS

Dreamcast

• Kitahei Gold (JP Publisher: NetVillage)

FM-7

• Kitahei (JP Publisher: SPS)
• Re Birth (JP Publisher: SPS)
• The Return of Ishtar (JP Publisher: SPS)

Game Boy

• Hon Shogi (JP Publisher: Imagineer)

Mega Drive/Genesis

• King of the Monsters (US Publisher: Takara; EU/AU/JP/AS Publisher: Sega; KR Publisher: Samsung)

Sound: T's Music?

• Ransei no Hasha (JP Publisher: Asmik)

PC-88

• Re Birth (JP Publisher: SPS)
• The Return of Ishtar (JP Publisher: SPS)

PC-98

• The Return of Ishtar (JP Publisher: SPS)

PlayStation

• Ground Stroke / Power Serve 3D Tennis / Power Serve (JP Publisher: SPS; US/EU Publisher: Ocean)

Graphics, Character Design, Packaging, etc.: Kovax [1]

PlayStation 2

• Atelier Marie + Elie: Salburg no Renkinjutsushi 1 * 2 (minigame programming) (JP Publisher: Gust)

Developer: Quintet; Some Graphics: Tiny Art, Studio Rong, Atelier Rong, Studio Loft

• Technic Beat (JP Publisher: Arika; US Publisher: Mastiff)

Sharp X1

• Harry Fox (JP Publisher: Micro Cabin)
• Kitahei (JP Publisher: SPS)
• The Return of Ishtar (JP Publisher: SPS)

Super Famicom/Super NES

• Barbarossa (JP Publisher: Sammy)
• Mega-Lo-Mania: Jikuu Daisenryaku / Mega-Lo-Mania (JP/EU Publisher: Imagineer)

Windows

• Battle Kitahei (JP Publisher: SPS)
• Battle Kitahei Server Pack (JP Publisher: SPS)
• Guilty Gear XX #Reload / Guilty Gear X2 #Reload (JP Publisher: MediaKite; EU Publisher: ZOO Digital Publishing)
• Internet Mahjong: Jyanpei (JP Publisher: NetVillage)
• Internet News Mail Gateway INMG [download] (JP Publisher: SPS)
• Internet Shogi: Kitaihei (JP Publisher: NetVillage)
• Jyanpei [download] (JP Publisher: SPS)
• Kitahei [download] (JP Publisher: SPS)
• Kitahei for Windows 95 (JP Publisher: SPS)
• Kitahei Gold for Windows 95/98 (JP Publisher: NetVillage)
• Le Flat [download] (JP Publisher: SPS)

X68000

• A-Jax (JP Publisher: Konami)
• Death Brade (JP Publisher: SPS)
• Pro Soccer 68 (JP Publisher: Imagineer)
• The Return of Ishtar (JP Publisher: SPS)