Graphics: 5/5 The graphics are bright, colorful, and smooth. The 3D effect not only looks great, but is actually MANDATORY for some sections during the game. Simply put, if you want the best looking game currently available on the 3DS, here you have it - it completely makes use of the 3DS's capabilities, and does it very well. It really blows my mind that such a tiny little cartridge can do what 3D Land does.
Sound: 4.5/5 Beside the fact that the music likes to loop a lot, like any other Mario game ever created, 3D Land has a really nice soundtrack. Surprised? Also, even the really minor sounds like Mario's "woo-hoo" and "hee-yah"s are nice... but you can't really expect anything less.
Fun: 5/5 Super Mario 3D Land is probably my favorite Mario platformer. While it won't take many long to go through all the worlds and "beat the game," you can always go back and get all three medallions on every section on every world to get a few nice unlocks that I won't bother to spoil for you. I don't generally recommend purchasing single-player only games (due to lack of replay value), but 3D Land is a game that just has to be experienced, and seen to believe. To be frank, anybody who is a naysayer of this game is either mentally retarded and/or has a brain tumor.