I think the biggest focus for the next version should be the menu navigation. One of the biggest things I would ass would be a back button in the Market tab. Buttons might be easier to navigate than lists, but its up to the Dev. The pixels per kills needs to be changed. You could probably use a Wiki to find the proper amounts monsters drop. There are other small things that I could go on about, but I don't want to turn a comment into a wall of text.