I'm playing Kingdom Hearts 3D HD, and while this song isn't in that game, Traverse Town has been converted into their world, adding new districts and such. TWEWY is a nintendo DS game and IMO is one of the greatest DS games, utilizing the DS to its fullest (at the time.) I love this game and love this song, and i would highly recommend it.
It takes place in Shibuya, and has a very modern style. But anyway, give it a listen maybe give the game a try (if you can find it.)