(can't post links yet

)
My favorite:
Revenge of Shinobi (1989) for Sega Genesis
youtube .com /watch?v=T033nUbhfz8
-This was awesome on so many levels. In retrospect, I appreciate the music even more after looking into the composer's (Yuzo Koshiro) body of work and contributions to video game music.
Honorable mention:
Devil's Crush (1990) for Turbo Grafx 16
youtube .com /watch?v=14W01V7At1A[/url]
-Epic Satanic pinball game with 3 tiers to the main board and a ton of bonus levels. The main theme-song was this hectic speed metal tune that added to the anxiety of trying to keep the game alive. Creeped me out back then.