The background image had clues as to what may appear in Thieves in Time, such as El Jefe's cigar, a samurai helmet, a genie's lamp, a cactus, time machine plans, a picture of the Eiffel Tower, an arrow and an animal skull from the ice age. There is also a small pyramid that references an Egyptian episode that was cut from the final game. Hovering the mouse pointer over El Jefe's cigar displays a window for entering a code. The code was IGPU79. When the Treasure Design Contest began, DoYouKnowSly.com displayed the rules of the contest and allowed contestants to enter their designs.