[Edit: Don't try to use the European (E) rom like this dummie :P ]
I cant seem to get the game to run ( •́︵•̀ ) It patched with no error (using the site you linked), and I tried two different emulators (VirtuaNES 0.97 and Mesen 0.9.8). Neither emulator complains that the rom is bad or fails to load or anything but all I get is an unresponsive black screen. The original rom I patched from works fine. ¯\_( ˘ ヘ ˘ )_/¯
Fun! Short! Exactly as Advertised!
I like it, it's almost like a Warioware micro version of SMB, a fun little morsel of a game. I still had to use a few savestates because I am absolutely garbage at SMB's weird momentum and jumping, but I had a satisfying arc with a game that I probably never would've come back to otherwise, so kudos