I've been keeping an eye out for this one on eBay for the last few days. Mind if I enter? Also what is the difference between huey and CD?
The CD version has different coloring and minor details in the backgrounds and new sampled voice and sound effects.
The CD version could be missing some frames of animation or something, but probably not since it reloads mid-stage. It also has a lame "cinematic" intro and arcade(?) music for the title screen.
The CD version is 1-player only, HuCard is 2-player simultaneous.
Anyone entering this raffle hoping to play the game as it was intended, will need either a 1.0 System card or a flashcard with the rom.