| Achievement | How to unlock
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|---|
| Animagus ( 10 points ) | Unlock all Animagi (Single Player Only).
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| Arachnophobic ( 10 points ) | Defeat 20 spiders with Ron.
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| Back in Time ( 10 points ) | Use the Time-Turner.
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| Boo! ( 10 points ) | Scare 20 students using a ghost character.
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| Building Blocks ( 30 points ) | Complete all the LEGO Builder tutorial levels (Single Player Only).
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| Chilled out ( 10 points ) | Freeze 20 characters using Glacius.
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| Crest Collector ( 30 points ) | Collect all of the house crests in Year 1 (Single Player Only).
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| Crest Fanatic ( 30 points ) | Collect all of the house crests in Year 2 (Single Player Only).
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| Dark Wizards ( 10 points ) | Buy every version of Voldemort ( Quirrell/Tom Riddle/Voldemort) (Single Player Only).
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| Defeating the Object ( 15 points ) | Defeat the mountain troll, using Quirrell.
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| Ghostly Treasure ( 15 points ) | Collect 500 ghost studs.
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| Good Dog ( 10 points ) | Defeat 20 enemies with Fang.
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| Head Boy ( 50 points ) | Complete Year Four Story Levels.
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| Junior ( 50 points ) | Complete Year One Story Levels.
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| Lumos Solem ( 15 points ) | Destroy 50 Devil's Snare plants.
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| Muggle Trouble ( 15 points ) | Defeat 10 enemies with a Muggle character.
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| Multiplier ( 10 points ) | Collect 10 million studs in one level (Single Player Only).
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| Power Up! ( 45 points ) | Collect all of the Red Bricks (Single Player Only).
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| Prefect ( 50 points ) | Complete Year Three Story Levels.
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| Quick Quidditch ( 15 points ) | Complete the Quidditch level within five minutes.
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| Quidditch Team ( 10 points ) | Buy the entire Gryffindor Quidditch team from Book One (Single Player Only).
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| Quiet Please! ( 15 points ) | Turn the sound and music down to 0 in the options menu whilst in the library .
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| Quirrell Quandary ( 15 points ) | Defeat Quirrell in the Quirrell boss fight, using Voldemort.
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| Role Reversal ( 15 points ) | Defeat Harry ( as Voldemort), in the Graveyard.
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| Senior ( 50 points ) | Complete Year Two Story Levels.
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| Solid Snape ( 15 points ) | Hide in a barrel as Snape.
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| Story Complete! ( 70 points ) | Complete the Story Levels in all four years.
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| Stud Magnet ( 30 points ) | Get True Wizard in every level (Single Player Only).
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| Student Rescue ( 45 points ) | Rescue all students in peril (Single Player Only).
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| Teacher's pet ( 70 points ) | Complete All Story Lessons (Single Player Only).
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| The Bonus Level is Yours ( 70 points ) | Collect all of the Gold Bricks (Single Player Only).
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| The Ultimate Collector ( 30 points ) | Collect all of the house crests in Year 4 (Single Player Only).
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| Ultra Collector ( 30 points ) | Collect all of the house crests in Year 3 (Single Player Only).
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| Watch Out! ( 15 points ) | Knock over ten characters using a ride-able object.
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| Wonderful Weasleys ( 10 points ) | Buy the entire Weasley family (Single Player Only).
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| You're the Best ( 70 points ) | Complete the game to 100% (Single Player Only).
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