He would later work for PROMELL in Mexico, through which he was able to work in the United States, working two matches for World Championship Wrestling (WCW). His first match was a dark match prior to the pay-per-view broadcast of Starrcade (1996), where he and Jerrito Estrada lost to Mascarita Sagrada and Octagoncito, and again the following day on "Monday Nitro" where the outcome was the same. In 1997 the U.S. based World Wrestling Federation (WWF) struck up a working agreement with AAA to bring in some of the "luchadors" to work on various WWF shows while the WWF would on occasion send some of their workers to Mexico to work for AAA. In late 1997 the WWF introduced the "Mini-Estrellas" from Mexico, but since most of the minis used ring characters based on regular sized competitors that the US audience did not know. Most of the wrestlers were given new ring characters and masks. Rodríguez was given the ring name "Battalion", a soldier character complete with camouflage tights and a soldier's helmet to wear during his entrance. His first match as Battalion took place on November 10, 1997, at a "Shotgun Saturday Night" show where he lost to Max Mini (Tuzki under a new mask and name). Battalion, El Torito and Tarantula lost to Max Mini, Mosaic and Nova in the second match of WWF's 1998 Royal Rumble pay-per-view. Rodríguez worked for the WWF throughout 1998 and 1999, including several matches on "WWF Super Astros" against Max Mini and Nova. His last documented match for the WWF was on Sunday Night Heat on July 11, 1999 where he, Tarantula, Max Mini and Nova worked against Al Snow in a 4-on-1 handicap tag team match that ended in a "no contest". After his stint in the WWF ended, Rodríguez returned to Mexico to work on the independent circuit, once again competing as Piratita Morgan. Records are unclear on how Piratita Morgan became the holder of the WWA World Minis Championship, the first records of his reign was on May 4, 2000, when he defended the championship against Octagoncito on an International Wrestling Revolution Group (IWRG) show. In late 2000 he reprised his "clown" character, working as the masked "Coquito Rojo" leading up to a "Lucha de Apuestas" mask loss to Mascarita Sagrada on December 21, 2000.