Executive Producer
Henk B. Rogers

Producers
Yasuaki Nagoshi
David Nolte

Directors
Masayoshi Takatori
Toshihiko Kitazawa

Software Development Manager
John Knoll

Quality Assurance
Kimio Matsumura
BPS Japan staff

Puzzles by
Alexey Pajitnov

BPS USA Staff
Sheila Boughten
Howard Lazzarini

Special Thanks
Scott Tsumura