DIGITAL FRONTIER

JGTC - ALL JAPAN GRAND TOURING CAR CHAMPIONSHIP (1998)

KINDAICHI SHOUNEN NO JIKENBO 3 - SEIRYUU DENSETSU SATSUJIN JIKEN (1999)

KINDAICHI SHOUNEN NO JIKENBO - HIHOU-TOU ARATA NARU SANGEKI (1996)

KINDAICHI SHOUNEN NO JIKENBO - JIGOKU YUUEN SATSUJIN JIKEN (1998)