How do you actually start up the editor? I extracted everything that was in the download, but I can't find any exes or something. I tried to click on the Classic Game.mario, but it doesn't seem to launch. In fact it says that the file has a unknown file format so it can't be opened. Am I missing som...
Don't want to sound mean, but we can't help you because I think the majority of people here, including me, do not know the solution either :/ I think you should contact 5438A38A for help in an e-mail, since he doesn't visit the forum anymore for some reason.
Official? Probably Super Mario Galaxy 2 and Super Mario 3D World; Unofficial? Super Mario Bros. X and, guess what, Cat Mario (or Syobon Action, whatever it's called)!
I totally agree that it looked much better before. Anyway Wohlstand did said that he's still working on updating the main page, so let's hope it will look better in the future.