Harry Potter and the Half-Blood Prince for Nintendo Wii is an action-adventure game that allows players to explore Hogwarts and interact with various magical elements. Players can participate in classes, engage in Quidditch matches, and create potions. Featuring multiplayer modes, the game highlights character progression through unlocking areas with the Marauder's Map. Harry is the primary character, with Ron and Ginny available in select levels.
Harry Potter and the Half-Blood Prince features the exploration of Hogwarts and casting spells on objects around the school, similar to its predecessor. The game also includes multiplayer games, classes, different times of day, Quidditch, Wizard Duels and Potion making. The Marauder's Map is included in the game, with progress opening other parts of the school. Harry can also call Nearly Headless Nick to show him around the school. Harry is the main playable character in the game, but Ron and Ginny are also available in two levels.