Handheld Heroes is a 41-track chiptunes featuring top tracks from some of the best artists in that sub-genre. That makes Handheld Heroes interesting enough, but if you pay an extra $5 when you purchase the album from here, you also receive a LSDJ player ROM, which allows you to play the music directly on your Game Boy. If you still have one, and if it still works!
I'm not a huge fan of Chiptunes, and my Game Boy is long gone, or at the very least buried in my parents attic in Scotland, but this seems, to me, to be the perfect way to indulge in Chiptunes.
And the music is so well put together. Even if you're not a fan, like me, it's hard to ignore the level of artistry that goes into these creations, with the restraints they place on themselves.
This is pretty awesome.