Commando

Commando is a classic top-down shooter, where you take the role of an unnamed soldier fighting in an unnamed war (although based on the appearance of the chopper presented in the game and the cabinet artwork, it is rather safe to assume the unnamed soldier is in fact a US Commando operating in Vietnam war era Vietnam), and your job is to make your way through several levels, and to defeat a garrison of soldiers inside a fortress on the end of each stage.