Source: https://www.youtube.com/watch?v=yHEeLKsRUos
Scenario Written by Kanoh (Makoto Kanoh)
Character Designed by Kiyotake , Matsuoka, Shikamoto (Hiroji Kiyotake, Hirofumi Matsuoka, Yoshio Sakamoto
Music Hip Tanaka (Hirokazu Tanaka)
Program
Hai Yukami < Hiroyuki Yukami
Zaru Sobajima < Yase Sobajima
GPZ Sengoku < Toshio Sengoku
N Shiotani < Contract? Kenji Imai?
M houdai < Unknown
Special Thanks
Ken Zuri (believed to be Kenji Nishizawa, who programmed the NES password system according to google patent included as source in game page)
Sumi
Inusawa (Toru Osawa)
Kacho
Hyakkan
Goyake (M. Goyake)
Harada (Takahiro Harada)
Pen Pen
Tohryu Mako
Benkei (Noodle place near Nintendo where R&D1 staff used to eat)
Converted by Narihiro (Toru Narihiro)
Assisted by Makoto Kanoh (Assistant Director, Makoto Kanoh)
Directed by Yamamoto (Director, Masao Yamamoto, was development leader of R&D1 at the time)
Chief Director
Satoru Okada (More of a management director than design director. Serves this same role in all initial R&D1 games)
Producer
Gunpei Yokoi