Global Defense - Master System

Global Defense (known as SDI: Strategic Defense Initiative outside North America) is a shoot 'em up game released for the Sega Master System in 1987. Set against the backdrop of space, it blends strategy and arcade action, tasking players with controlling a satellite to defend Earth against incoming missile threats. The gameplay involves shooting missiles and other hazards while strategically positioning the satellite to manage the onslaught effectively. Players must showcase quick reflexes and sharpshooting skills to maintain Earth's defenses and achieve high scores in this interstellar defense challenge.

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