The championship was generally contested in professional wrestling matches, in which participants execute scripted finishes rather than contend in direct competition.

In late 2012, AAA introduced a new television program, titled AAA Fusión, which would start airing alongside the promotion's primary television program, Sin Límite.

[7] El Hijo del Fantasma won the ten-way elimination match to unify the two titles into the new "AAA World Cruiserweight Championship".

[2][8] The AAA Fusión Championship tournament started on November 3, 2012, when Fénix defeated Dark Dragon, Drago and Toscano in a four-way elimination match to become the first wrestler to advance to the finals.

[9] The final two first round elimination matches took place on March 1, 2013, when Juventud Guerrera defeated Aero Star, Pentagón Jr. (Dark Dragon's second appearance in the tournament) and Último Gladiador, while Crazy Boy defeated Angélico, Halloween and Super Fly.