If this is the demo, then I'll be really looking forward to the day the full game is released. I love beat em ups that aren't overly serious in its core concept. The gameplay is smooth, the difficulty is made in a way that its just right. One suggestion I would make is that you can put some variety on enemies by just having two different color palettes for the same enemy. Its an easy way that old Beat em ups used to do, and it would give the game even more of a retro feel. Also, the backgrounds look kind of dull and empty, like the first Final Fight. Try to put some characters and movement in the background to make it more lifelike and interesting, like in Final Fight 2.