10th Battle of Los Angeles tournament, where on August 29 he defeated Brian Myers to make it to the quarterfinals before losing to Roderick Strong via disqualification on August 31. On March 11, 2015, Styles defeated John Hennigan to win the FWE Heavyweight Championship in a best of three falls match two falls to one; Hennigan won the first fall after hitting the Starship Pain, but Styles made Hennigan tap out to the Calf Killer shortly thereafter to score fall number two and pinned Hennigan following a Styles Clash to win the title. On May 29, 2015, reigning IWGP Heavyweight Champion Styles (representing Bullet Club with manager Jonny Ferrari) defeated Justin Gabriel at House of Glory High Intensity 4 in Jamaica, New York. On June 14, Styles won the Revolution Pro Wrestling (RPW) British Heavyweight Championship, defeating Marty Scurll at Summer Sizzler for the title. In September, Styles made his debut for Chikara, when he teamed with fellow Bullet Club members The Young Bucks (Matt and Nick Jackson) in the 2015 King of Trios. They made it to the semi-finals of the three-day-long tournament, defeating Team Fight Club (Trent Seven, Tyler Bate and Dan Moloney), but were ultimately defeated in the finals by Team AAA (Aero Star, Drago and Fénix). On January 14, 2016, Styles wrestled a match for 5 Star Wrestling in Sheffield, England, where he faced Rey Mysterio for the first time, where Styles defeated Mysterio. Styles lost to John Morrison in a singles match which was for the inaugural 5 Star Wrestling Championship. On January 16, Styles returned to Revolution Pro Wrestling in London, England, losing the RPW British Heavyweight Championship to Zack Sabre Jr. Following the match, Styles cut a promo addressing his future and teased entering the Royal Rumble match. On February 5, Styles wrestled his final independent match (which he had pre-booked before signing with WWE), defeating Corey Hollis at Georgia Premier Wrestling. New Japan Pro-Wrestling (2014–2016) For the first time since the TNA-NJPW partnership in 2008, on March 27, 2014, it was reported that Styles would return to New Japan Pro-Wrestling and had signed a contract with the company. Styles' return came on April 6 at Invasion Attack, where he attacked IWGP Heavyweight Champion Kazuchika Okada after his match and laid him out with the Styles Clash and challenged Okada to a title match, before revealing himself as the newest member of Bullet