Oh man. I remember seeing this arcade game in the wild back in the day. I don't think I played it, but it's very memorable. Some Matt Furniss goodness here! (If you like his stuff you should check out this Pixelated Audio episode!) Sounds like this tune is exclusive to the Atari ST version ... he seems to have written a different intro tune for Atari ST, Amiga, DOS (groovy monophonic bass riff there!), Commodore 64, plus one that's shared between ZX Spectrum and Amstrad CPC. That's crazy! Crazy awesome, I mean.