I might be totally wrong, and this also might suck, but I think this music is from R-type when I played it over 20 years ago an arcade that was oddly listed in the phone book as IREM Corp. (Well, I mostly just watched my friend beat it in 1 quarter a few times since I could only beat the giant ship and die on the next level.) The music might have changed a lot as it sloshed around in my head all that time. I added some (which is a little obnoxious), and I probably forgot some too.
http://bit.ly/fWAU9q
I was just searching for R-type music to see if I could place it.
