Just got it and played the first 6 or 7 levels on Single Player. Here's what I think of it: Two new powerups are very cool and fun. Innovative way to use the Wiimote The 2D / 3D mixup is very nice to look at It's like the DS game but improved. Levels are similar but made Wii specific Love the idea of coop (up to 4 players) however... No online play... which sucks a bit. It IS do-able but Nintendo have just been lazy? Speaking of Nintendo being lazy, the 4 characters you play as are Mario, Luigi, and 2 unknown, unnamed, identical-except-for-colour Toads... nice imagination.