At the October 4 "SmackDown!" tapings for "Velocity", Juventud (along with Super Crazy and Psicosis) faced Brian Kendrick, Paul London, Scotty 2 Hotty, and Funaki in an over-the-top battle royal with the stipulation that the winner would receive a title shot at the Cruiserweight Championship at No Mercy. After finally eliminating London, Juventud won the battle royal and the title shot. At the event on October 9, he defeated Nunzio following a Juvi Driver to capture the Cruiserweight Championship, his first title in WWE and, due to the title being originally from WCW, his fourth Cruiserweight Title reign. Juventud later went on to lose the title back to Nunzio at a live event in Italy. On November 25, Juventud regained the title on an edition of "SmackDown!" from England. Guerrera lost the Cruiserweight title to Kid Kash at Armageddon on December 18, 2005.