During gameplay press-up, triangle, down, X, left, O, right, square. You should see a message that says cheats unlocked. Now you can enter a code below:
During game play press- left, square, X, up, triangle.
During game play press- up, X, left, square, up.
During game play press- down, triangle, square, square, up.
During game play press- right, up, up, right, right, square.
During game play press- up, down, left, left, right.
During game play press- down, right, right, left, left.
During game play press- down, left, , left, right.
Upgrade to Bottle
During game play press- up, down, left, left, right, right
Stoke Trick Meter
During game play press- down, left, left, right, right
During game play press- Left, Square, Circle, Square, Left
During game play press- Right, Up, Up, Circle, Circle, Square
To get simple money just go to arcade mode and when you start the race don't try to go fast and win. Start out by doing a bit of combat (circle or square) then stop once you have been passed. Start doing a bunch of tricks. For example manuals, stoppies, superman's, back flips ect. If you can go off the same jump twice. Then when you finish the race you should get lots of money for tricks. With this money you can get things for your bike in single player.
Go through the Black Diamond gates(follow them in a row) to earn a little extra cash.
Punch, kick, check, throww bottles and whack opponents with a stick to earn more cash.
Go to 2 player and do a single event (it doesn't matter if you have a second player or not). Choose any rider and course. Do the race but make sure you don't get 1st place. Make sure that the second player doesn't cross the finish line. Then just beat everybody up that's there with your attack and once you think you have enough combat points just get the second player to the finish.