Ultimate Murray is an outfit available for Murray to wear in Sly Cooper: Thieves in Time. The outfit can be unlocked by collecting 30 Sly Masks, and was unlocked automatically if Thieves in Time was pre-ordered. Murray is seen wearing the costume in Of Mice and Mechs where he used it to break into the Black Knight's castle by swimming through the moat, despite his inability to swim in-game, and activate some bombs concocted by Sir Galleth Cooper. Like all other Mask prizes, they are for appearance only and do not affect gameplay in any way.