Sega Master System Shanghai Monday Night Wars Activision held the Marvel game

Activision held the Marvel game license during this era and produced a steady stream of superhero titles

Submarine warfare

and they applied the same arena combat formula to submarines

The cover features a comic strip-style layout with six colorful panels showing a cartoon dog in various humorous situations

California Games (1989 on Master System

Sega Master System Shanghai Monday Night Wars Activision held the Marvel gameSega Master System case for "Shanghai" in the later era Master System packaging. A light blue "FAMILY" category banner runs across the upper left corner. The Sega logo sits at the top center. The cover features an illustrated hand reaching down to select a Mahjong tile from a layered arrangement of tiles covered in Chinese characters and symbols. "Shanghai" in large dark serif text. The standard white grid Master System background. Shanghai (1988) was