Here is a list of all the bloopers that appear in the PC game of Harry Potter and the Half-Blood Prince. So far there are 5 mistakes.

Mistakes

• The Burrow is on a different place then it was before. There is no lake and there are no animals. ^[1]
• Draco Malfoy say that he will come later to Gregory Goyle and Vincent Crabbe and instead of Blaise Zabini and Pansy Parkinson. ^[2]
• Draco sees Harry Potter at the window, not at the door. ^[3]
• Potions class has been a different class then in other years. ^[4]
• Also it's given to the other side of the castle. ^[5]