Jigsaw Piece
From the Croc Wiki, the Croc encyclopedia
A Jigsaw Piece In Croc: Legend of the Gobbos is found in each of the eight secret levels each containing a Jigsaw Piece. These levels are unlocked by collecting all six Gobbos from the three previous consecutive normal levels, and played after the Guardian level. All eight Jigsaw Pieces, when put together, create the fifth and final island, Crystal Island.
