Whether it’s off the ropes or on the mat, Romero has solidified himself as a true artist of the ring at NJPW. Having worked the indie circuit in America early in his career, he joined NJPW through its Los Angeles Dojo in 2002.

Romero’s potential was recognised by the LA Dojo, and led to his Japanese debut alongside then partner Ricky Reyes in October 2002. Not long after, Romero would don the legendary Black Tiger mask and engage in a fierce rivalry with Tiger Mask that saw him claim the IWGP Junior Heavyweight Championship in October 2005.  

It’s as a tag team wrestler though that has seen Romero to his greatest successes. He has won the IWGP Jr. Heavyweight Tag Team title a record eight times with Davey Richards, Alex Koslov and Beretta. Romero and Beretta, Roppongi Vice, disbanded in 2017, but reformed in 2022, en route to challenging FTR and United Empire for the ROH and IWGP Tag Team Championships. 

In January 2023, Romero won the NWA Historic Welterweight Championship by beating the former Champion Volador Jr. at Arena Mexico.
Coming up short at Forbidden Door, Romero had a taste for gold and competition, and reunited with another former partner in Davey Richards, this time as his opponent, seeking to become MLW’s National Openweight Champion at Music City Mayhem.