I can NOT get past Filch and Mrs. Norris, when u explore the library in your invisibility cloak, on a another cheat it says: keep going up the stairs and u should be on the fifth floor but theres only one set of stairs from the 2nd to the third floor and then it says after that once u go out the secret unlocked door Snape and Filch will be talking but there is no unlocked door on the fifth floor! I have a Gameboy Advance SP and the cheats that are on this website dont count for my game but i hope u will help somehow n e wayz-Claire