The theme of the game is to explore Hogwarts and follow the story from the book and movie. EA encouraged fan participation in the development of this game, and worked with a fan council. However, unlike prior games like the action-oriented Goblet of Fire, this time the adventure is in the style of a sandbox game. Similar to the Grand Theft Auto series and Bully, Hogwarts is fully explorable most of the time, and there are “discovery points” that provide rewards to the player, which can be activated by completing side missions. Furthermore, there are battles between groups of students, as shown in the game trailer, this is the last Harry Potter game to be released on the Game Boy Advance.