Agreed, that pretty much mirrors my sentiments.
Though I'm wondering now.... The Duo has a built-in System Card 3. Space Fantasy Zone is supposed to be a CD-ROM^2 game, not a SuperCD. Perhaps it really isn't the game, but maybe System 3 breaks it somehow? Someone should try playing the Anime4Ever version on a Duo with a System 2 card and see if it's still broken. If no one does it in the near future, I'll load System 2 on my flash cart and give it a try in a week or so.