Instruct: Classify the given review as either positive or negative.
Query: This is a challenging, strategy-packed game

This game is really fun. You have to think a lot about it and it can get frustrating. When i first got it, I zipped through the first world and had a lot of fun. But as the worlds went on, I had to think more, strategize more, and play more. I went on a long car trip so I got a lot of time to play it. So far, I've played it about 70 hours and I'm only on world 3. But this game is very fun and you can go back to levels and try out cheats and get items that you didn't have a chance to get. The only thing about this game is a little discouraging is the fact that you will get sick of playing the levels. But you get unlimited continues and the only thing you lose are points. Buy this game, and at first you'll think it's easy, then you'll think it's cheap (like me), then you'll think "I really like this game."