Apologies for replying to a four year old post, but I felt like this was worth contributing: I think this team likely developed Turbo as well (since it is the only other game to run on the Zoom 909 hardware other than SubRoc 3D), along with Sinbad Mystery. As for the latter, there seem to be a "H.K", "YOS", and "FUK". H.K. probably refers to Hideo Kume, YOS probably refers to M. Yoshii, and FUK probably refers to the unknown identity of "FUKUMARA". Something also wants to make part of the team developed Monster Bash as well, although I have absolutely no clues on that game.