In exhibiton mode, go to the team select and press R1 or L1 to change uniforms.
Austin Dingers in Batting Practice
From the Main Menu screen, choose Batting Practice. Next, move down, highlight Derek Jeter, and press X. On the Player Select screen, press L1, R1, L2, R2 simultaneously. Once you do this, the Austin Dingers team will appear. You can choose any player from this team for batting practice.
Go to exibition mode and press L2 and R2 repeatedly. You will hear a little dong sound that means you got them. You will get two new teams, and Dingers and the Islanders. They are both in the 90’s.