The surprisingly unstreamable, but who cares because it is free anyways and assuredly awesome new album from OverClocked ReMix is available now. Legacy: Game Boy 25th Anniversary is an album length album of tributes to classic and niche tracks from the original DMG-001.
It's a heartbreaker that Super Mario Land 2, arguably one of the best Super Mario platformers ever, was not in on the festivities. There are a ton of other classics though, such as the original Super Mario Land, Pokemon, and Legend of Zelda: Link's Awakening.