To find the official Harry Potter and the Prisoner of Azkaban AR codes go to www.codejunkies.com. Enter the USA site and go to the cheats option. Choose GBA, and look under the H listing.
I am awesome. You are not. I am right. You are wrong. Get used to it./Part of SikuserX the twinrova wizard/Part of the Poker Playing Not-So-Secret Super Secret Agents/Part of the Reality Replacers (We reject your reality and replace it with our own)