Nangoku Shirei!! Spy vs Spy [Model KCS-SI]

Released on March 27, 1987 in Japan.

* Music box: As the ending cutscene depicting a Spy returning to the submarine plays, hold at least one A and one B button on any controller. If done right, rather than presenting the results screen, the Music Box will appear. To select from one of 16 tracks, press Up / Down while A, B or Start will play the selected track. Press A on the second controller to reset music and pause/unpause. Pressing Select will exit the Music Box and show the Results screen.

Programmers: Shinobu Michiura, Fumio Tono, Tomoharu Aihara, Shizuho Nagaoka, Fumi Iwamoto
Characters: Kiminari Sueda
Plan: Yasushi Hirashita, Makoto Kario, Minori Shinagawa, Chiemi Tatsunaka
Music: Hiroyuki Masuno