Absolutely Beautiful... Bravo Wii!
The gameplay is also very well thought up, the fluency and the way that there are always curve balls keeps the game very fresh all the way through. It's always fun to play a side view 2D platformer, it brings up good memories. The game's downfall is the lack of difficulty, to the sense that you'll never die and the only punishment is the final gems count, that only serves to give the game another layer of playability. But it also pushes for a better run through if you have the patience for it.
I absolutely recommend this cutesy game if you own a Wii or a Wii U. It's a treat to the soul.