Harry Potter and the Chamber of Secrets

Cheat Mode
Go to the Broom Shed and do a task. If you win a card, press R and a screen will appear. Press B to display the cheat menu.
(Thanks to Vegeto1991@aol.com)

Gemstone Locations
1 - In the first chest box, near the slugs.
2 - Defeat all three Fire Turtles.
3 - In the box next to the switch, that activates the crushers.
4 - In the gem cart near where the mine-carrying cart that takes you out, is located.
5 - In the boulder. To get it out, turn on crusher, put the boulder under it, and turn the crusher switch.
(Thanks to Vegeto1991@aol.com)