FYI, Whatever skeleton crew of what remains of Technosoft seems to have been posting digital soundtracks for sale at 10 bucks a piece. Currently you can by the soundtracks to the Thunder Force stuff, Blast Wind and Hyper Duel.
Amazon: https://www.amazon.com/s?rh=n%3A1638560 ... 1473390492
iTunes: https://itunes.apple.com/us/artist/tecn ... 1142208281
Google Play: https://play.google.com/store/search?q= ... oRNc&hl=en