Every hard-core gamer is a fan of the Metroid franchise. The NES and SNES versions were probably the most popular games on either of those gaming systems. Any Metroid fan probably knows the in-game music by heart too. And if not, they would recognize it if they heard it.
Metroid Metal is one of the coolest downloads any gamer could have in their collection. The project started in 2005 by Dan Taylor, which has now evolved into a full-fledged band with Kevin Lawrence, Dan Behrens and Micheal Molnar.
There are a whole bunch of free songs on the site from Metroid, Super Metroid, Metroid 2, Metroid Prime, Metroid Prime 2 and Metroid Prime 3. You can also purchase a remastered lossless CD if you donate at least $6 to the project. Go listen, it’s awesome!