NWA世界ジュニアヘビー級王座
As a singles wrestler, Romero won the CMLL World Super Lightweight Championship on three occasions, the IWGP Junior Heavyweight Championship (as Black Tiger) and the NWA World Junior Heavyweight Championship. In the tag team division, he is a former three-time ROH World Tag Team Champion and a record eight-time IWGP Junior Heavyweight Tag Team Champion. Romero's wrestling style incorporates stiff shoot-style kicks and multiple armlock variations resembling mixed martial arts, competing in lucha libre style events in Mexico early in his career.