Honestly, I avoided this hack until the end. Because I was not attracted to hacks on SMB 2 USA, due to the fact that it is already a hack... However, at the request of "John the Cat" - I tried it. And, you know - I honestly don't know what version he gave me, but for the test - the hack really tightened. Pretty good graphics, everything is well redrawn. And the cherry on the cake turned out to be music. I've never-never heard of a NON-MARIO hack making music changes.
Although I am not familiar with the Beatles' music and their history, but the hack is really well done. If they were given this, I think they would be happy with such a gift :-)
(The Yandex translator is used, so there may be errors in the text)