Super Mario 3D Land is a 3D Mario game that plays like a 2D Mario game. It allows both groups to buy the same game. I didn't like this move, I want me my regular 3d super Mario game. All of the levels are timed, they are short, and if you are regular Mario and you get hit, you shrink. But, I thought the game was extremely easy (with exceptions of some random levels, none of which were in world 8, or the special worlds). Speaking of special worlds, they are in the game. The game has as many special worlds as regular worlds. I'm not a fan of having to unlock Luigi though, you have to beat all of the regular worlds, and the first special world. Although this game has its flaws it is a fun addition to the Mario Series.