Great multiplayer, though boring single-player.

User Rating: 9 | Final Fantasy Crystal Chronicles (w/Game Boy Advance cable) GC
As much as I hate to say this, this game is OK on single-player, then starts getting incredibly boring.

Single-player: 6 out of 10
Multiplayer: 10 out of 10

The multiplayer mode is a ton better, I say. There's either complete sync with your partners, complete conflict, or both. Learn to master conflict as well as understanding what the other player wants to do all the time can keep the game extremely interesting and easy. I know this because that's what me and my sister do, our characters don't get along in the least bit, yet we're in perfect sync for places like that wind cave. We're on year 35 and the game still is interesting. Though easy, because of our defense and attack stats.
Give your characters personalities. Let their personalities clash all over the place. This'll keep the game interesting.
On single-player, there's no conflict to keep the game interesting. That's why the game gets boring easily.