Sonic Adventure Battle 2(never figured out if that was the correct way it's said) was one of the best games that came out for the gamecube. The chaos didn't have like anything to do with the storyline, but it was still fun to abuse my little chao then force it to race and battle other chaos. The two things they could do better are 1:Chaos never die. That was the most annoying thing ever.
2:They should come up with Wi-fi battles and races.