The original Famicom
Disk System game which was rape
d and turned into the America
n Super Mario Bros. 2
. All that was really changed were the intro, the swapping of DDP's middle-eastern characters for their very similar-looking Mario
Universe counterparts, and the addition of a "run" button. The "real" SMB2 was only released in a couple of compilation
s in the U.S.
, as the "lost levels" and so forth.
Why Nintendo did all of this is beyond me... Beside the fact they're Nintendo.