I enjoy the game, and it has potential. I think gamepad support would help you get more players. The level design makes it hard to tell where the ledges are. Maybe some railings on parts that look like walkable areas, but are actually edges, would be a good idea. The player drops like a rock when he jumps; maybe jumps could be slower, or cover more distance? I can't tell if it's the isometric perspective, or the actual jumping. A shadow under the player may help the player tell where they are. Also, the camera should probably follow the player. As it stands, the player has to reach an edge to "push" the camera along; that makes it hard to see enemies off screen. Great Job, though.