Harry Potter and the Chamber of Secrets Cheats

Harry Potter and the Chamber of Secrets Cheat: Infinite Health
When you are in your bedroom go to your bed and press X,Circle, R1, R2, L1, L2 and then open the trunk and there will be a bean and when you eat it you have unlimited life.

Harry Potter and the Chamber of Secrets Unlockable: Nimbus 2000
Go to Quidditch practice on the second day of school and complete the training with a B rank or better.

Harry Potter and the Chamber of Secrets Hint: Easy House Points
After going through the challenge to get the Expelliarmus, Avifors, or Incendio spell book, right after you are awarded your 40 points from the current teacher and class is dismissed, save the game and restart your PS2. After you load your game, you will once again be awarded 40 points, adding on to what you just recently received. Do this as many times as you please.

Harry Potter and the Chamber of Secrets Hint: Extra Wizard Card
Near the start of the game when you need to hit the gnomes off of the rafters there is a wizard card on the rafters. If you go outside you will notice a little platform on the outside of the barn. Make Harry climb up it and go through the window and there is the wizard card.

Harry Potter and the Chamber of Secrets Hint - Easy Duels
If you're struggling with duels, do this instead. Wait for your opponent to summon and send a FLIPENDO at you. Cast EXPELLIARMUS on it and before the FLIPENDO reaches your challenger, send a DIFFINDO at him. Since DIFFINDO travels so fast, they will get hit with DIFFINDO, then the other spell. Note: this will not work on those statue things.