Cheats
Enter the following codes at the "Press Start" screen. You will hear a noise to confirm the correct entry of the code.

Extra Money
Y, X, Z, Y, X, Z, X, X, Y, Z, X, Y

Increase Reputation
Y, Y, Z, X, X, Z, Y, Y, Y, X, X, X

Level Select
X, X, Z, Z, Y, Y, Z, X, Y, Y, X, Z