Ironhide turned into one of the most greedy game developers on iOS and it shows. I agree with all the previous criticism here of paying $5 for a so called "premium" game and only getting part of the experience. I see some people here say that, well, that's just the way this trend is going. No, it's not. There are plenty of great iOS developers who release full games with even more content and replayability for just as much or less. This is a trend that is going with Ironhide and it's a real shame. They're milking their customers dry, plain and simple. Next KR might have premium stages, I honestly wouldn't be too surprised. Vote with your wallets plain and simple - no matter how hard it is (I'm a big KR fan so skipping this entry is not easy).