Just joined; Pretty hyped for Sonic 3D DX. I'm a huge Sonic fan. That's really all.
By the way, can you please find a way to use the custom Super Sonic animation that person made? Maybe you don't have to convert the image. Maybe you could recreate the sprites pixel-by-pixel in the original sprite creation software. That is, if such a thing exists, and if you still have access to it.
https://twitter.com/Angus_Beer/status/923772266898485248