Arrow is pretty fun, but it didn't hold my attention for long.
Shutter is fun as well.
Ski is a dud and boring.
Patchwork is my favorite single player mini-game, mostly because I like these sort of picture puzzle things and it has an extensive amount of content.
Kung-Fu is alright, but shitty gyroscopic controls ruin the game.
Gamer is alright, although it's everyone's favorite one apparently.
Design has a great concept, but you'll probably get bored of it rather quickly, especially when the Gold trophy essentially needs you to be practically perfect.
Ashley is a lot of fun, although the gyroscopic controls can be a bit disorienting. At least it's colorful, and hey, it reminds me of Kirby's Epic Yarn, so that's another point in its favor.
Taxi is neat, but there's only three levels. At least the levels are sort of long though, so it makes it up, I guess.
Pirates is pretty neat and I enjoyed it because of the rhythm based gameplay. The gyroscopic controls on this game aren't as intrusive as they are in Kung-Fu.
Bowling is pretty meh. Standard bowling. The challenges remind me of Monkey Bowling from Super Monkey Ball 1 and 2, so there's that.
Bird is another dud, and a really shitty game for the final unlockable.
Sketch is, ironically, the best multiplayer game in my opinion, even though you can pretty much play it with a piece of paper and a pencil. Many....interesting pictures were drawn, to say the least.
Islands is pretty fun, even though there's a little too much luck involved for my liking. Reminds me of Monkey Target from the Monkey Ball games.
Fruit and Disco are a bore, that's all that needs to be said.