I have a feeling the only way we'll get SSFII AGA to work in 2MB is to get one of the WHDLoad guys to rewrite the installer. There WAS a CD32 version of the game made, it was just never released. It was exactly the same as the A1200 version (although it might have had CD music), so the game is possible to work on the CD32, maybe if it's installed another way. The game also works with the original installer on a 2MB A1200 but requires a disk to be in DF0 to run for copy protection purposes.
I'll pay anyone who can get it working, or if someone can get SF2 working on a CD32 with the CD32 controller (the game is no fun to play with a keyboard).