LEGO Harry Potter: Years 1-4

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LEGO Harry Potter: Years 1-4 is the first LEGO Harry Potter videogame. It covers the first 4 stories, The Philosopher's Stone, The Chamber of Secrets, The Prisoner of Azkaban and The Goblet of Fire. It was developed by TT games (Traveller's Tales).

The game features 167 playable characters, including Professor Severus Snape, Sirius Black, Barty Crouch Sr. and Lord Voldemort himself.

Animagus and Pets
Some characters have an Animagus, where they can transform into an Animal. Characters like Sirius Black who can turn into Padfoot, a dog, and Rita Skeeter who can turn into a Beetle. Whereas some characters have the control of Pets. From Year 3, Hermione Granger can control Crookshanks, a Cat, and Ron (until Year 3) can use Scabbers, a Rat. They can be sent into Tubes in order to solve puzzles to progress in the game.

Release Date
LEGO Harry Potter: Years 1-4 was released, in the UK, on June 25, 2010. Whilst in the U.S, it was released instead on June 29, 2010. The PSP version was delayed until August 13, 2010.

Hubs
This game, has more exploration to be done. In LEGO Star Wars games (with the exception of LEGO Star Wars III: The Clone Wars), the player can only explore the diner/cantina, whilst in LEGO Harry Potter: Years 1-4, the player can explore Diagon Alley and its shops, and also Hogwarts and its grounds and classrooms.