This code can be entered from either the main menu or when you pause the game. While holding L1, push the following buttons in order: up, up, up, up, x, square, up, up, up, up, x, square, up, up, up, up, and you will have the ultimate air available to you! While using the "Jetpack," hold triangle to hover, hit x to trigger the "Jetpack" and push any up or down to move, and left or right to steer.