ACA NeoGeo: Robo Army

It would be better if there was a choice of selectable characters, but Robo Army is a well presented scrolling beat 'em up that offers plenty of entertainment. A good range of enemies (and a number of ways to defeat those enemies) keeps the action interesting and there are a number of fun boss encounters. There's not a lot of incentive to replay once cleared, but the usual Hi Score and Caravan modes adds some replayability as you look to improve your scores. In might be a while before you boot it up again, but whether playing alone or with a friend each playthrough provides plenty of fun. For those looking for some old school arcade brawling action, Robo Army is a good pick.