Have you tried if said character works on Mugen 1.0?If it worked correclty in winmugen then there's a 90% chance it will work on Mugen 1.0.
You export all it's sprites. You put them into MSpaint and you enlarge them followed by hours of editing to add more detail. You then put them back into mugen and redo all the clsnboxes, velocities and offsets.Still want to do it?