In a sense it is since it's in brawl. But I do love that song!

Metal Gear Solid has the best musical scores.

one winged angel-FFVII

OoT medley

http://youtube.com/watch?v=vJIM_JwHGFk

Gourmet race

http://youtube.com/watch?v=5KKW3MT-8PU

and etc...

2:10 and on

starfox 64, sonic boom, banjo kazooie(treasure trove cove, click clock woods and the game show), banjo tooie(hailfire peak and the mine level), zoras domain theme, gerodu valley, all the songs from all the DK country games, zeldas lullaby, metal gear, DONKEY KONG RAP!, and countless others that i can't recall right now

Majora's Mask and Mario RPG

I've heard a lot of video game music in my day, and Nintendo game themes are up there in quality, but if I had to pick a single favorite tune or game, it would probably be something from Apogee's Rise of the Triad, released for the PC in the mid-90s.

Rise of the Triad was groundbreaking in terms of the quality of direct dial Modem play, Network multiplayer, and the ridiculous, breakneck speed of gameplay and gratuitous gore. It wasn't a Doom clone, it was an homage to Doom taken to the nth degree.

I spent YEARS playing this. It was a LAN party staple.

The tracks in particular, all composed by Lee Jackson and Bobby Prince, were extremely high quality MIDI for their day. While most of my generation, now 30-something PC gamers that were begging their parents for $3G for a college PC back in 1994 (really not for college, just to play Doom and get on this new-fangled thing called the Internet), will recognize Doom tracks more readily, I tend to think RotT was without peer for its music.

My three favorite tracks out of that are Oww, Mistache, and Shards. Oww is just some great free-form funk beat, Mist Ache has a very dark, almost Glen Danzig's Black Aria type symphonic feel, and Shards, I think, has a strong Castlevania vibe to it.

http://rott.classicgaming.gamespy.com/gallery/OWW.MID
http://rott.classicgaming.gamespy.com/gallery/SHARDS.MID
http://rott.classicgaming.gamespy.com/gallery/MISTACHE.MID

The first time I ever heard RotT in stereo MIDI, my jaw hit the floor. It was a reason to spend $200-300 on a Soundblaster AWE32 or 64 sound card.

King Dedede's Theme is my absolute favorite song in any video game.
http://www.youtube.com/watch?v=z3QRoUTAUco

I do like a few others though.

Revenge of Meta Knight
http://www.youtube.com/watch?v=LPPwdlgv2cs

Fountain of Dreams
http://www.youtube.com/watch?v=j_QToro5P-I

Battle with the Hag (Least I think that's what it was called in its score :x)
http://www.youtube.com/watch?v=0eKK3CZPKac

Bowser Battle Chorus
http://www.youtube.com/watch?v=RJqrQJr_vrc

Kamella
http://www.youtube.com/watch?v=ucsc3QDO6OY

The Ultimate Show
http://www.youtube.com/watch?v=Dd3y6Pci3g8

Francis Battle
http://www.youtube.com/watch?v=l0YfuCkT1VI

Solaris Phase 2
http://www.youtube.com/watch?v=vRe3h1iQ1Os

Theres a lot more... but I'll leave it at that :x