It is an AMAZING game. The art is pretty cool. The music fits well. The main character is kinda of emo but he becomes a okay guy after a couple of chapters. The story is pretty good and has some interesting twist.
The combat is basically done with the stylus, you don't actuallly change your clothes, you just collect pins. These pins each have their own powers and when used can be leveled up. The ones you wear even level up when you're NOT playing. (up to 4-5 days). You can have five pins, and each one have their own way of being used and cooldown time.
For example, I have a kind of energy sword that lets me slash across an enemy with my stylus to deal damage. Another one that lets me click on object such as cars or construction cones to pick them up and fly them around to deal damage. I have one that when I click it heals me and another one that is an upward slash. There's some that require you to blow in the mike but that's kinda gay when you play on the bus.
It's kinda pokemon in that way, depending one which section of the city you see different enemies and your pins will be enhanced or reduced.
Also, while you're struggling to fight enemies, you have a supporting character at the top screen that also fight those enemies with a simple set of controls. You have to match signs in a certain order to do certain attacks and at some point, you can also do synchronized super attacks. If you don't touch anything, the supporting character will auto-control itself, but it's pretty useful to control him as well. It's got good replayability value because you can collect more pins and there's a mode that gives you more information about the plot. It's always fun to play for 10 minutes on the bus or on the bowl, once you've beaten it.
Check on youtube for cool videos of it:
My judgement: Get it.