
Solve a Labyrinth.
Once you reach the 2F of the Opera Hall, head to the left side, here you will find the Flower Swords Ball, in amongst some junk. Take this to the Merchant Room, near the Hall of Four and in the back right of the room you can place the ball into a little labyrinth. Use your controls to tilt the ball into the little tower with a flag, be careful of the 3 holes surrounding the little tower or you’ll be forced to start again. Once you’ve achieved your goal, you’ll pick up a Crimson Skull worth 8,000 Lei and more importantly this achievement!