Francisco Islas Rueda, better known by his ring name Super Crazy, is a Mexican luchador. In Mexico, Islas has worked for Asistencia Asesoría y Administración (AAA) and made appearances for various independent promotions but is not currently associated with one specific Mexican promotion. As Super Crazy, Islas gained American exposure by working for Extreme Championship Wrestling (ECW) between 1998 and 2000 and for World Wrestling Entertainment (WWE) between 2005 and 2008. He has also toured Japan on several occasions, working for New Japan Pro-Wrestling (NJPW), Pro Wrestling Zero-One (Zero-1), All Japan Pro Wrestling (AJPW) and Pro Wrestling Noah.

Lucha libre is the term for the style of professional wrestling originating in Mexico. Since its introduction to Mexico in the early 20th century, it has developed into a unique form of the genre, characterized by colorful masks, rapid sequences of holds and maneuvers, and "high-flying" maneuvers, some of which have been adopted in the United States, Japan, and elsewhere. The wearing of masks has developed special significance, and matches are sometimes contested in which the loser must permanently remove his mask, which is a wager with a high degree of weight attached. Tag team wrestling is especially prevalent in lucha libre, particularly matches with three-member teams, called trios.