are you kidding me? the battle's I'll admit hold up pretty well, but I still think they're only half as good as the GBA battles, why they got rid of bro attacks- I have no idea..
everything else sucked, areas were based entirely around specific moves, so there is absolutely no replay value in the baron areas, unless you really want to dig up all those beans, which was actually enjoyable in the GBA version because you had a nice big overworld with some really nicely designed areas.
sprites suck. they suck, they absolutely suck, usually when they start making the graphics for the game, they'll start with the main character sprites so they can start testing the engines, this is obviously the case as the main character sprites are the worst in the game, mario runs like a fucking retard when he isn't carrying a baby and they all look pretty stupid standing still, they shouldve established a more consistant style by making some npc's first.
back to level design, I have no idea why they wanted to use un-pixeled tiles, still, that doesnt really matter, just breaks up the art direction more, but why they used 32x32 tiles when they give you only half the creative control, I cant be bothered going into it here, everyone should recognize its repetitive and empty area design, moving from place to place is incredibly boring...
just forget this game, its a fucking travesty. play the GBA one, its perfect