The 8-bit Mario gets a 16-bit update!
As far as gameplay goes, it's your typical Mario style game. You'll be doing a lot of jumping and smashing of goomba's and hammer bros., all while trying to beat the clock to the end. With the exception of Super Mario World, all the Mario games get a much needed graphical update and they look exceptional.
This game is a must have for anyone Mario or game collection. All the games are a must have, especially with the inclusion of the Japanese version of Super Mario Bros 2. Get this if you haven't or you want to experience the classics again.