LocoRoco (PSP, 2006)
How could we write a feature on awesome game music without featuring LocoRoco? In a game where happiness is pretty much available on tap, the music had to match. And boy, does it match! A mix of Japanese and nonsense (mainly nonsense), the words are incomprehensible, but that doesn't matter. It's awesome. Check it out here:
Above: If you've never tried LocoRoco on PSP, give it a go. Definitely over the PS3 version