Sigma Enterprises, Inc., aka Sigma Shoji Co., Ltd. (シグマ商事株式会社) was a Japanese game publisher.
Ponpoko
Battle Cruiser M-12
New York! New York!
R2D Tank
Maka Maka
Time Zone
Akazukin
Fuzzical Fighter
Hissatsu Dojo Yaburi
Spiders
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