I think removing the level cap on the challenge missions would help out a lot. The time attack challenges are especially frustrating - especially when you spend 7k gold on runes only to fail (for a mission doesn't even give you 2k).
I really don't understand why the rating is so low, but if people would leave feedback I could try and address any problems or answer any questions. It seems like I suddenly got a bunch of "1 star" votes.
This is my first game and I hope everyone gives it a full chance and enjoys it. While it was being beta tested I thought of about six or so fun missions/mini-games I could make using my Saturn Blue code and I decided I would make them if you guys like my game enough (somewhere around a 4.3 or 4.4 rating I hope). If this game is popular then I plan on creating a lot more games too. Thanks.