I agree Ken's theme is awesome, I've played his stage a few times just to hear his song while not caring for the game play very much. Like you just jump around the level dodging the enemy to prolong the song. I also remember enjoying Zangief's Russian style song from "Super Street Fighter II Turbo". That game even allowed you to listen to all the sound effects at will in one of the settings menu. But i have a lot of trouble getting that old game to run nicely on my computer, even with dos box.

Anyway i think your cover is nice. Did you tab by ear?