CAGE Hanayama Cast Metal Brain Teaser Puzzle Metal cage with openings on 4 sides. Six-pronged star inside. Object is to remove the gold star from inside the cage. Then replace star to the start position. Rated as a level 3 on a scale of 1 to 6. Your experience could differ. Small, compact, pocket size, cast metal brain teaser. Metal Disentanglement Style Puzzle from Hanayama Puzzles of Japan.