Board Thread:M.U.G.E.N Collections/@comment-25910367-20150216225939/@comment-7114405-20180404214439

To add to what Gudine said, I believe that the only things that stop a 1.0 character working in 1.1 are the tagin/tagout controllers, though it's highly unlikely that a character (particularly those created by western authors) will have these as the tagin/tagout feature was never properly implemented into 1.0, so there'd be little reason for authors to use them.

Also, I'd hardly call replying in a thread where the last post was only about a month and a half ago a necro.