And aside from being 2d Mario games published by Nintendo the lack of a run button is about all SPM, DK94, and YI have in common! They play nothing alike, and I've yet to see any elements that felt like they were pulled from either game. If SPM is reminiscent of anything it's a Monster World game, as Mejilan mentioned earlier.
Too bad SPM's not nearly as good as Dragon's Curse. People should buy that instead! It's got a funnier translation, no overlong cutscenes, it's a bit of a challenge, you have to grind a bit but it's preferable to that hamster wheel bullshit, and it features a smoking one-eyed pig.
OHHH YEAH WELCOME TO FLAVOR COUNTRY.