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The ending screen was originally from Capcom, not the whole hack. As people already mentioned it's probably the one by yumeji, there's some more info in the description here https://www.youtube.com/watch?v=DFLhCt0BAE8 And some files here as found by Asure on the previous page...

It's from a Capcom test build https://tcrf.net/Street_Fighter_II#Unused_Ending