First go to the player select screen.Highlight Scorpion and hold start.While holding press any of the 4 buttons ( square, triangle, circle and x) thenu will see the picture turn.Make it turn 2 times.then press x.After if done corectly scorpion will have a skull head and gray costume.do his fatality that he spits fire and burns u.u will notice when he takes his mask of,he will have the same head and then look at his hand.His mask is the yellow one!