Bandcamp is offering the Rokko Chan original album and the Rokko Chan arranged album on a pay-what-you-can rule. Simply name your price and all 64-tracks are yours.
While you could essentially fork over a dollar and call it a done deal, bear in mind all proceed go towards the game's developers and the artists involved in the arranged album. It's probably a nice idea to throw in something a bit meatier for these guys. They really deserve it.
That said, you can make your purchase here. And if you haven't played Rokko Chan, well, get on it. It's free!
Thanks for the tip, Rokko Fan!