At the title screen, press L1+L2+R1+R2, then press
Square+Triangle, and press Start. You will enter the map selection
screen. Hold L1+L2+R1+R2 and press Circle. If you press correctly,
you'll hear a sound.
To increase money in the game, press Start to pause the game, then press
Left, Right, Up or Down to increase the amount of money.