The Good: Game works really well with Wii-mote, graphics are quite nice in 480p, gameplay is actually somewhat improved.
The Bad: Computer players seem to cheat, luck has infiltrated the game.
Graphics: The graphics are actually quite nice. The menus actually look a little better than Zelda, I think. However, to widescreen owners' dismay, there is a huge carnival-ly border on the sides of the screen, just begging to burn in the screen. Widescreen borders aside, the game has a few added touches, such as spaces lighting up as your character steps over them. 8.5/10
Story: OK, here's the story: you pick a character.(assume he's Mario) Mario goes to the Star Carnival, where MC Ballyhoo offers him a year's supply of candy for finishing the "Star Battle". Mario hastily agrees, and then you're off to the board games. Unless you have a widescreen TV (see Graphics), the carnival theme doesn't stick, and you're just playing same old Mario Party. However, Mario Party doesn't need a Zelda-esque story, so not too many points deducted. 9/10 (Because it doesn't need a story)
Gameplay: It's same old Mario Party. But "same old Mario Party", contrary to most critics, is pretty much perfected. However, they messed a few things up in this game. First of all, it's so easy to get coins, the minigames don't really matter. Second of all, the Donkey Kong and Lucky spaces tend to give out free stars to the player who lands on them. This would be great... if they checked to make sure they were giving charity to the underdog, and not current leader. Also, it seems the computer players, no matter how good you are at the game, are always winning in the board game segments. 7.5/10
Sound: For the most part, it sounds good; however, Yoshi sounds different. MC Ballyhoo can speak fluent English on common phrases, but then he'll say something like "Shnaio Niao" or "Bobely hoo" and the text box will translate. It just seems inconsistent. 7.5/10
MP8 was sopouse to be a NGC game, so Nintendo screwed all of the NGC owners over by releasing it on the Wii, sure it's fun playing the game with the Wiimote but if you're into graphics and have a widescreen TV then this is one ugly game.
If you have 4 Wiimotes and 4 people to play with and do not care about graphics then this is a rent, not a buy. It's not a buy because it's the same old stuff, Hudson should really get off their lazy butts and come up with some new ideas.
Read the IGN review and ignore all these Nintendo employees who are giving the game 9's and 10's, it's nowhere near that good.