I believe this game needs more credit than was given to it.

User Rating: 9.5 | Sonic Rivals 2 PSP
Sonic Rivals 2 deserves more credit than many people give to it. The graphics, in my opinion, are great. The storyline is short (I beat it with Silver in less than a day), but you have to complete it with all 8 characters. There is also card collecting, battling, chao finding, and card trading. The boss battles can be hard, but are unique. The bosses don't have a health bar. You face off against the boss and a rival, and you try to get six hits on the boss before your rival does. Ifrit, the games final boss, requires 8 hits, but your rival isn't trying to hurt it. Another great thing about this game is game sharing. It is one of few games with game sharing, meaning that you can play with a freind who doesn't have the game. This game is highly addictive and is better than many other games I've played.