Use reducto
A door in the front next to the stairs.
To get past the flying keys in LEGO Harry Potter for the DS, you need to use the spell "Alohomora" to unlock the door leading to the next area. You'll first have to catch the correct flying key, which is usually identifiable by its unique appearance. Move around carefully and time your movements to grab the key without getting hit. Once you have the right key, it will unlock the door for you to proceed.
you go to the main section of Hogwarts where there are two flights of stairs and you go up the left on and that Door is the library. *please note you need a certain spell to open the library*
Go to the charms room (the dark one). There is a trap door with a question mark on it. You might have to do something to unlock the trap door either in this room or the room next door. Enter the trap door, go right avoiding the traps and you will get to it. You will need dark magic to get it, though.
The bathroom door isn't available, it's just there to add more detail to the scenery of Lego Harry Potter.
To get the flower in the hospital wing in Lego Harry Potter for the Wii during Year 2, first, use a character with the ability to cast the "Alohomora" spell to unlock the door to the area. Once inside, look for a plant that can be watered. Use a character with the "Water" spell to water the plant, which will cause it to grow and reveal the flower you need. Collect the flower to complete that task.
If it's got a metal Lock on it, then you must wait until year 4, but if there's red sparkles, you will have to use polyjuice potion to turn into someone like Tom Riddle or a death eater.
Mrs.Figg
http://cheats.freeola.com/playstation_i/harry-potter-and-the-chamber-of-secrets_4532.html this will help you btw you and me bouth man i was qureas for years :) XD
In "Harry Potter and the Chamber of Secrets" for PlayStation 2, you can use the spell "Alohomora" to unlock doors. To cast it, approach a locked door, press the designated button to bring up the spell menu, and select "Alohomora." Once selected, aim at the door and press the action button to unlock it. Make sure you have learned the spell from your lessons first!
go to the door that leads to London train station and press contine story
When you pass the door to the area with the second prefect, you need to turn right to the hallway with the portrait - talk to it and it will distract the prefect.