Thanks OverCoat!
Suleputer (Capcom's music wing) released the Area 88 arcade and SNES theme music on CD a few years ago. If you can get your hands on it, the CD has two delightful arranged versions of "Thunder Cloud" and "Maritime".
http://vgmdb.net/album/3603
Are you referring to the standard boss theme, or the final boss theme?
Standard: http://www.youtube.com/watch?v=VJ0KilHkxFk
Final Boss: http://www.youtube.com/watch?v=ORMeyEOmQaQ&feature=related
I'd love to hear a remix of either one!
As a youngster, my favorite arcade game was U.N. Squadron (known as Area 88 in Japan), and I would love to hear a rock or techno remix of the stage 2 arcade theme, "Thunder Cloud".
http://www.youtube.com/watch?v=Gg4hpjbw43U