|Same Characters in 2P mode|
When using the "Always As" code in 2P mode, you can play as the same character. It works by selecting the Always as character as player 2. For example to play as 2 Sonic's, you would make player 1 Shadow and player 2 Sonic, thus causing you to have 2 Sonic's play.
Playing as 2 Sonic's
2 Amy's can be achieved by using the Always Sonic code and making Player 1 Metal Sonic and Player 2 Amy
2 Tikals can be achieved by using the Always Knuckles code and making player 1 Chaos and Player 2 Tikal