How do you get 100 percent in gryffindor common room?

To achieve 100 percent in the Gryffindor common room in the "Harry Potter" Video Games, you typically need to complete all tasks, collect all hidden items, and engage fully with characters and challenges in that area. This includes finding all House Points, completing mini-games, and exploring every nook and cranny for collectibles. Additionally, make sure to interact with all available characters and complete any side quests they may offer. Following a guide specific to the game can help ensure you don't miss anything.