Yoshi's Wooly World
A huge portion of the enjoyment in this game is the style. Everything is made of yarn or fabrics. It all has a handmade crafty quality to it that sets it apart from any other game I've seen. It's not hyper-realistic graphics, but it's perfectly styled to fit the game.
The game itself is still very much a Yoshi's Island game. Yoshi is trying to explore levels while collecting various objects throughout. Clearing the level is rarely the challenge, instead the challenge comes from finding and collecting everything in the levels.
I've had some fun with it, but my daughter is really the one who has latched onto the game. My wife knits so our kids are around yarn all the time. My daughter thinks the yarn style of the game is just amazing. She's having a ton of fun with yarn Yoshi and just exploring the game.
I highly recommend this one if you have kids or if you're a platformer fan who also likes collecting and exploring. It's super cute.