HARRY POTTER AND THE CHAMBER OF SECRETS UNLOCKABLES
Get the bestiary option
Finish the five Famous Witches and Wizards cards CREATURES in your collection. After you collected all five, there will be a new category in your menu which will give information about the creatures you will commonly see in the game.
Gemstone 1
In the first chest box near the slugs.
Gemstone 2
Defeat all three Fire Turtles.
Gemstone 3
In the box next to the switch that activates the crushers.
Gemstone 4
In gem cart near were the mine carrying cart that takes you out is located.
Gemstone 5
In boulder. To get out, turn on crusher, put the boulder under it, and turn the crusher switch.
Charms cards
The cards below are referred to from left to right.
First card
Found during your Leviosa Challenge.
Second card
Secret room in portrait hall.
Third card
Room in Flitwick's office.
Fourth card
Secret room, corner of Gryffindor common room where you light torches with incendio to open a wall.
Fifth card
Bonus room in portrait hall, with male portrait. In order to get the last spell, Alohomora, you must get all five Famous Witches And Wizards "Charms" cards in your collection.
Skurge spell
Defeat Peeves the first time you enter the Restricted section of the library on the second floor.
Girding Potions
Finish the five Famous Witches and Wizards card POTIONS, and you will receive five Girding potions.
Increase your boost bar
When at the flying lessons press A at the start when the countdown reaches 1. Timing is important in this trick.