To change teams during a game, push the joystick RIGHT while holding the Pass button for two seconds at the player substitution screen.
To expand the team roster, hold the joystick down at the player select screen and press Pass three times. Then rotate the joystick 360 degrees and push the Pass button again.
To make your players cat-quick, press any button five times at the Match-up screen ? before it begins to fade. Then hold the joystick DOWN and press Shoot as the screen fades.
At the match-up screen, hold the joystick Down/Right, and then press Turbo, Shoot, Steal, Turbo, Shoot, Steal, Turbo, Shoot, and Steal.
At the match-up screen, hold the joystick Up and press and hold Turbo/Pass as the screen fades.