Excellent game, but there is near 0 replay value.

User Rating: 8.5 | Mario & Luigi RPG 3!!! DS
The game is fun, the battles are essentially a collection of mini-games which you use to defeat your foes. The story is relatively uninspired, and the bodily "functions" you affect have nothing to do with reality. That said though, this is a fantasy game so there are no real surprises and besides, it's all fun.

Having finished the game there is no real reason to replay the game, though in fairness the mini-game / battles remain fun and after the first play through you are unlikely to have mastered them, and you are extremely unlikely to have found all the secrets. So, replay is definitely an option, but depending on what you look for in a game there won't be anything left.

Overall it took about 27 ish hours to play through, though naturally that will vary depending on how much exploring / getting lost you do. Getting lost is relatively hard in that the game always tells you roughly where to go.

In typical Nintendo (or Mario) fashion the game is cute and whimsy but remains fun. I would definitely recommend it to anyone enjoying their RPGs. This isn't a jump and run, so keep that in mind.

I don't want to give away any of the story, but you play about half of the game as Bowser, and the other half as Mario and Luigi. You are pretty much guaranteed to have a good time, but it isn't Shakespear.

So, close to 30 hours of game, Mario cuteness, RPG, lots of secrets and a curious storyline. What more could you want?