Solution for harry potter and the goblet of fire

As you know, there are (at least, from what I've seen) 3 steps to defeat Voldemort:

- the "normal" fight, using the DS buttons, among the graves
- the 3D battle, with the stylus
- the part where Harry's and Voldemort's wands connect and where you have to press the A, B, left, and right buttons on the DS, according to what scrolls at the bottom of the screen...

Hello

I bought the game Harry Potter and the Goblet of Fire but I didn't have the booklet with the code in the packaging
can someone please give it to me?

I can't manage to fight Voldemort even with the advice from shady90. Thank you for your help.

Désolé, je ne peux pas vous aider avec ça.