Release all balloons.
Launch a blueprint box 15 meters high.
Finish the King's Dream chapter.
Finish the Nighttime chapter.
Reveal every storybook page in the game.
Finish the Unfinished Empire chapter.
Look at the sleeping King.
Finish the Garden chapter.
Launch a blueprint box 30 meters high.
Reach the Watchtower without throwing more than 3 balls.