Sega CD port might be difficult, it doesn't have much RAM to work with i heard.
What would be fun is to decompile the game and recreate the source code, and then do a port for the
Everdrive Flashcart.
then the game could be as big as you want, because from what i've heard the Everdrive cart can stream data.
which means it could stream wav music as background music and load new stuff right from the cart.
but you can not do that with the normal rom, you would need to rewrite the source code to comply with how the Everdrive cart works.
Here's a clip of the Everdrive cart displaying a movie clip on real hardware, its actually just a big slideshow but it streams the rom.
so it doesn't load the file into memory at once, it streams it
http://www.youtube.com/watch?v=s_HphJTJNTI&feature=relatedThis would be great for the MKII and UMK3 hacks.