Players journey through four different terrains in this challenging game of spatial reasoning and logic. The object is to use four irregularly shaped puzzle pieces to cover the different track patterns indicated on each of 20 challenge cards. The clincher is that you can't just cover the footprints. You have to use all the pieces on the board at one time. There are more than 300 ways to fit the puzzle pieces into the game tray, so the possibilities are endlessly diverting.