I agree Mr. Zagnorch, Star Fox has some great music to complement it.
I'm a 16-Bit nut when it comes to music. Sometimes I'll pop in a game just to listen to the BGM.
Personally this one always makes you feel rewarded. Although short is still lovely.
Also I really enjoy the music from M.U.S.H.A. on the Genesis a lot. It complements the game perfectly. Its a heavy metal based theme with a rushed feeling to pump you up and keep you on your toes. Probably why this game is one of the most sought after SHMUPS game ever created.
And after so many stages of hard work and heavy metal music you get something calm and rewarding for the credits. A very different sound from the rest of the soundtrack.
I really wish a metal band would remake the M.U.S.H.A. soundtrack. I love metal!