Harry Potter and the Half Blood Prince Hints, Tips

Crest Unlockables

113 Hogwarts Crests - Two Player Dueling Pack 4: Paved Courtyard Dueling Arena.

129 Hogwarts Crests - More mini-crests with each cast.

14 Hogwarts Crests - Two Player Dueling Pack 2: Training Ground Dueling Arena.

21 Hogwarts Crests - Dungbombs in prank boxes around Hogwarts.

29 Hogwarts Crests - Two Player Dueling Pack 2: Crabbe & Goyle.

3 Hogwarts Crests - Two Player Dueling Pack 1: Draco & Luna.

38 Hogwarts Crests - Score boost in flying events.

48 Hogwarts Crests - Exploding Cauldrons in prank boxes around Hogwarts.

59 Hogwarts Crests - Two Player Dueling Pack 4: The Transfiguration Dueling Arena.

71 Hogwarts Crests - Even More health in duels.

8 Hogwarts Crests - More health in duels.

84 Hogwarts Crests - Two Player Dueling Pack 5: Ginny & Hermione.

98 Hogwarts Crests - Love Potion in Potions Club.