Sonic Adventure DX Director's Cut Cheats

2 Player in Adventure Mode!
When playing adventure with Sonic, after you've rescued tails, you can use the second controller to play as tails, use tails to get extra rings or help defeat bosses because if he gets hit you don't lose rings!
NOTE: if player 2 gets lost or goes too far away from Sonic for too long tails should reappear right next to Sonic ;>