Harry Potter and the Half-Blood Prince
Unlock Castle Gates Two-Player Dueling Pack
Go to "Rewards" in the menu (in there you will see "Badges" and "Credits" along with how many Crests you have found) and with your D-pad enter: RRDDLRLRLR then Start. You will receive a message saying you have unlocked it.
Contributed By: caffeinevoices.
Go to the Rewards sub-menu from the Main Menu, where you see the two choices, Badges and Credits. Using the d-pad, enter the following code to unlock Everything: Down,Left,Left,Left,Left,Left, Down,Down,Right,Down,Left
Contributed By: KageLunatic.
Complete each achievement to get the allotted gamerscore.
Unlockable How to Unlock Adventure completed (100) Conclude the adventure Burrow Defender (20) Successfully protected The Burrow Combo Flyer Badge (10) Earn the Combo Flyer Badge Crest Collector 1 (10) Complete Crest Collector Level 1 Crest Collector 10 (30) Complete Crest Collector Level 10 Crest Collector 11 (30) Complete Crest Collector Level 11 Crest Collector 12 (40) Complete Crest Collector Level 12 Crest Collector 13 (50) Complete Crest Collector Level 13 Crest Collector 14 (60) Complete Crest Collector Level 14 Crest Collector 2 (10) Complete Crest Collector Level 2 Crest Collector 3 (10) Complete Crest Collector Level 3 Crest Collector 4 (10) Complete Crest Collector Level 4 Crest Collector 5 (20) Complete Crest Collector Level 5 Crest Collector 6 (20) Complete Crest Collector Level 6 Crest Collector 7 (20) Complete Crest Collector Level 7 Crest Collector 8 (20) Complete Crest Collector Level 8 Crest Collector 9 (30) Complete Crest Collector Level 9 Duelling Beginner (10) Earn the Duelling Beginner's Luck Badge Duelling Champion (10) Earn the Duelling Club Champion Badge Duelling Veteran (20) Earn the Duelling Veteran Badge Escaped the Cave (40) Escaped the Cave Good Deed (20) Help the student retrieve her stolen Gobstone Great Mate (20) Help Ron avoid Lavender Great Party (10) Create a great Christmas party for Slughorn Grime Buster (10) Clean up after Fred and George at The Burrow Hidden the Book (20) Hide the Half-Blood Prince's Potions Book Keen Flyer Badge (20) Earn the Keen Flyer Badge Master Duellist Badge (50) Earn the Master Duellist Badge Master of Flying (50) Earn the Master of Flying Badge Master Potioneer (50) Earn the Master Potioneer Badge Mystery Solved (20) Retrieved Slughorn's missing memory Portrait Novice (10) Use your first portrait shortcut Portrait Pro (20) Use all of the portrait shortcuts Potions Beginner (10) Earn the Potions Beginner's Luck Badge Potions Club Star (10) Earn the Potions Club Star Badge Potions Club Veteran (20) Earn the Potions Club Veteran Badge Precision Flyer Badge (10) Earn the Precision Flyer Badge Quidditch Beginner (10) Earn the Quidditch Beginner's Luck Badge Quidditch Captain (10) Assemble the Gryffindor Quidditch Team Quidditch Champion (30) Won the Quidditch Cup Reflex Badge (10) Earn the Reflex Badge Speedy Brewer Badge (10) Earn the Speedy Brewer Badge Used the Pensieve (10) View Dumbledore's first memory of Tom Riddle in the Pensieve
Contributed By: Guard Master.
Hogwarts Crest Unlockables
Collecting so many crests around Hogwarts will unlock certain single and multi player things.
Unlockable How to Unlock 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
Contributed By: omegamustard.
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