The Four Royal Hedgehog Goblets are four goblets that vary in size and shape.
Having acquired the goblets, Dr. Robotnik used them for a trap to capture the Sonic Underground. Knowing that the group would attempt to get the goblets back, Robotnik planned to lure the Sonic Underground out of hiding by auctioning the goblets off, although not before putting the goblets up on display in the museum of Anay. Although the goblets were placed under tight security in the museum, the Sonic Underground still managed to steal the goblets and get away. However, Robotnik had anticipated this, and used a device revealing the Sonic Underground's footprints to track each of the royal hedgehogs down.