Fatal Fight is a side-scrolling beat-em-up with tons of enemies. Although contrary to Final Fight this game has the added feature of being able to violate defeated female enemies. You battle across 6 different levels, from forests to factories, facing a boss at the end of every stage. The difficulty is pretty high, at least for someone with my limited skill, however the game seems to have unlimited continues so you can just grind it through. The controls are surprisingly good for a hentai game, the commands are responsive and the hit detection is very good.