The following companies have been credited with this game. This does not necessarily imply they are the owner(s) of the IP.
Publisher History
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dB-SOFT
(Hitachi S1, MSX, PC-88, Sharp MZ-80K/700/800/1500, Sharp X1)
Developer History
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dB-SOFT
(Hitachi S1, MSX, PC-88, Sharp MZ-80K/700/800/1500, Sharp X1)