Star 3: Secret of the Haunted Bookshelves
Enter the mansion and go to the library room (the room with many bookshelves). You'll notice some bookshelves are moving. Punch the correct sequence of three moving bookshelves to reveal a hidden passage. The correct sequence is usually: middle, right, left. Once the passage is open, enter it to find a Power Star. This star requires a bit of observation and quick reflexes. The library is a key area in Big Boo's Haunt, and this particular star is hidden behind a puzzle involving the moving bookshelves. Players must identify which bookshelves are out of place and then strike them in the correct order. A mistimed punch or an incorrect sequence will reset the puzzle, forcing Mario to try again. Successfully activating the hidden passage leads to a new area where the Power Star awaits. This puzzle emphasizes environmental interaction and memory, adding a cerebral challenge to the platforming gameplay.