So far, I've gotten 4 of the 6 stars, and I've gotta say, the game's been excellent overall.
The game looks beautiful, as if created by a child with all sorts of paper craft. The soundtrack is a joy to listen to, with catchy and relaxing beats on the ears.The writing is excellent, with a lot of great humorous moments, so much so I was laughing often while playing. The world is great to explore, with each stage feeling like its own separate episode, having a unique gimmick or event happening (with a few exceptions of a stage's story carrying on to multiple levels). Combat is overall fun and interesting, presenting you with different ways to dispatch enemies. Some enemies need to be jumped on, while others are only affected by hammers, and a few enemies you need to figure out how to defeat them. It's not without its faults, as I feel there could be more variety in attacks, rather than different jumps and hammer attacks. However, there is enough variety in the cards to the point where it's hard to have all of the cards in your deck without having a large quantity of certain cards.
Overall, it's been a great joy to play. Often times I have a hard time quitting, simply because I want to see what else this game can possibly throw at me. I've seen some funny bizarre things in it that may rival even TTYD, and I eagerly await to see what else will come up. I can go on about this game, but I will leave it at this.