See the Reflections Team: As the game is loading, wait for the screen with the piracy warning. Then press and hold L1, Left and [Circle] simultaneously. When the Reflections team logo, it shows all the team programming members.

Enter the following names at the Enter Name screen:

Animated Credits: CREDITZ!

Credits Video: ToNyPaRk

Invincible (in Wreckin' Racing and Stock Car only): !DAMAGE!