Board Thread:M.U.G.E.N Help/@comment-32384321-20190524181848/@comment-3495717-20190524201049

It's possible, but not a simple task as the bulk of the screenpack (menu, select, versus, continue, victory, results, options) is contained within the same files (system.def and system.sff), so you'd have to copy the select screen block from the screenpack you want and replace the block from the screenpack you have, and then import the sprites used in the select screen from one system.sff to the other; the reason why it's problematic is that there's no real standard for sprite groups and indexes for each screen, so what's used for the select screen of one screenpack may be used for something else in another.