Gain Ground SX

Gain Ground is a 1988 action arcade video game developed and published by Sega. It is set within a supercomputer's simulation of war, and follows up to three players traversing through a series of forty levels themed after select periods of human history. The goal of each level, depending on the player's choice, is either to guide at least one player character safely to an exit point or to destroy all enemies within them, both of which must be completed before a given time limit elapses. It was later ported to the Master System, Mega Drive/Genesis, and TurboGrafx-CD.