The art is not bad and the gameplay is simple but effective. When I saw the screenshots, I thought this was an autorunner game, but it's more of an infinite mega man level. I do think if you went the Canabalt route, it would work really well with the gameplay and the art you have already. Besides that, I think the beginning area should be free of enemies because when I opened the game, I immediately lost time before I could figure out what I was supposed to do. Another issue I encountered is the shots from the enemies seemed very inconsistent. Sometimes it fired a slow shot that went in a line, sometimes it went 3x speed and tracked you so there was no way of dodging. I couldn't figure out how it fired. Boss fight was a fun way to break up the constant running.