if you mean the internal cache for split games, there's an option to delete it in multiman. I think it's in the settings tier somewhere, but it's been years since I've used multiman. all split games, the files, they're put on the internal hdd in a cache. I've never actually looked for the cache, since you can delete it from within multiman. I think it does all games at the same time, don't think there's a way to do just one or two games.