NSMB Wii is fantastic, can only recommended to every one loving good old 2D jump and run games. Every single round is packed with secrets and items you have to look very hard for, I didn't was so absorbed by a jump and run for a long time, not since Donkey Kong Land on the good old Gameboy.
The graphics look fantastic, it was designed with big screens in mind, everybody complaining that Wii games don't look good on big TVs should take a look