Taguchi's best known gimmick is akin to a disco dancer, often sporting a short afro and colorful, flamboyant attire and celebrating victories with a post-match dance, encouraging his partners to join in during tag team matches.

During high school, Taguchi dabbled in many athletic pursuits, including baseball, soccer, and track and field, before entering the 76 kg (168 lb) class in amateur wrestling at Tōkai University.

[6] He enrolled in the New Japan Pro-Wrestling (NJPW) dojo in March 2002, training under Kotetsu Yamamoto, passing the promotion's notoriously tough entry test,[6] before debuting on November 22, 2002, in a losing effort against Toru Yano.

[5] Taguchi continued to wrestle in minor matches through early 2003, before being entered into the tenth annual Best of the Super Juniors (BOSJ) tournament by default after Heat pulled out.

[7] In November 2003, Ryusuke Taguchi and fellow New Japan graduate Hirooki Goto won a 4-team tournament to decide the number one contenders to the IWGP Junior Heavyweight Tag Team Championship, defeating Wataru Inoue and El Samurai in the semifinals and Masahito Kakihara and Masayuki Naruse in the finals.

[13] On the April Strong Energy tour, Taguchi was entered into the eight-man round-robin Young Lion Cup (YLC) tournament, earning nine points in the group stage and defeating Hirooki Goto and Michinoku Pro's Kazuya Yuasa in the semifinals and final, respectively.

[12] Taguchi once again competed in the Best of the Super Juniors tournament in June 2004, finishing with 4 points by wrestling to 20-minute time limit draws with El Samurai and American Dragon, and defeating Jyushin Thunder Liger in 45 seconds.

[17] He competed in two farewell matches in New Japan, losing to Wataru Inoue in the first and teaming with Taiji Ishimori to defeat Tiger Mask and El Samurai in the second.

[18] Taguchi made his CMLL debut on February 11, 2005, in the Arena México, teaming with Black Tiger and Shigeo Okumura to defeat Negro Casas, Felino and Safari.

[23] They made their first defense on March 19, 2006, defeating another veteran-young lion duo in Koji Kanemoto and Wataru Inoue,[24] followed by three-time title holders Gedo and Jado on May 7, 2006, in a match that lasted over 30 minutes.

[25] Taguchi again competed in the BOSJ in June 2006, finishing in fourth place out of seven in his block with seven points, defeating Jyushin Thunder Liger, Sangre Azteca and Fuego, and wrestling to a double count out with Jado.

[27] On September 3, 2006, Taguchi made his debut in New Japan's WRESTLE LAND brand, teaming with Pegasus Kid II to defeat Milano Collection A.T. and Makai Rey Cobra #3; he also wrestled in a brief "bonus track" match later in the night, winning a 14-man tag team match along with Hiroshi Tanahashi, Tanaka, Jado, Gedo, Pegasus Kid and Gran Naniwa against Toru Yano, Milano, and five members of the Makai Club.

[30] Four days later on January 7, 2007, Taguchi suffered a right eye injury in a tag team match with Tiger Mask against Jyushin Thunder Liger and Milano Collection A.T., forcing him out of action for two months.

He had been scheduled to compete in a four-man tournament to decide the number one contender to the IWGP Junior Heavyweight Championship, but was removed as a result of the injury;[31] Taguchi returned on March 3, 2007.

[48] On July 5, 2009, at Circuit 2009 New Japan Soul Taguchi and Prince Devitt, known collectively as Apollo 55, defeated The Motor City Machine Guns of Alex Shelley and Chris Sabin to win the IWGP Junior Heavyweight Tag Team Championship.

[57] On January 22, 2011, Taguchi defeated Máscara Dorada for the CMLL World Welterweight Championship at a Consejo Mundial de Lucha Libre and New Japan Pro-Wrestling co–promoted event, titled Fantastica Mania 2011, in Tokyo.

[58][59] At the second Fantastica Mania 2011 show the following day, Taguchi and Devitt regained the IWGP Junior Heavyweight Tag Team Championship from Kenny Omega and Kota Ibushi.

[70] On October 10 at Destruction '11, Taguchi and Devitt lost the IWGP Junior Heavyweight Tag Team Championship to the No Remorse Corps (Davey Richards and Rocky Romero).

[71] On January 4, 2012, at Wrestle Kingdom VI in Tokyo Dome, Taguchi and Devitt defeated Richards and Romero to once again regain the IWGP Junior Heavyweight Tag Team Championship.

[78] On October 21, Apollo 55 entered the 2012 Super Jr. Tag Tournament, defeating Chaos World Wrestling Warriors (Brian Kendrick and Low Ki) in their first round match.

[80] Despite failing to make it to the main card of Wrestle Kingdom 7 in Tokyo Dome, Taguchi made an appearance at the event, challenging Prince Devitt to a match for the IWGP Junior Heavyweight Championship, after he had successfully defended the title against Low Ki and Kota Ibushi.

[82] On April 7 at Invasion Attack, Apollo 55 unsuccessfully challenged Time Splitters for the IWGP Junior Heavyweight Tag Team Championship, after which Devitt turned on Taguchi, ending the longtime partnership between the two.

[90] At the following major event, Wrestling Dontaku 2014 on May 3, Taguchi received a shot at the IWGP Junior Heavyweight Championship, but was defeated by the defending champion, Kota Ibushi.

[95][96] He made his first successful title defense on October 13 at King of Pro-Wrestling against El Desperado, despite outside interference from his Suzuki-gun stablemates Taichi and Taka Michinoku.

[110] On January 5, 2017, Taguchi, Hiroshi Tanahashi and Manabu Nakanishi defeated Los Ingobernables de Japón (Bushi, Evil and Sanada) for the NEVER Openweight 6-Man Tag Team Championship.

[126] On Night 2 of Wrestle Kingdom 14 on January 5, 2020, Taguchi, Makabe and Yano lost the Never Openweight 6-Man Tag Team Championships to Los Ingobernables de Japon, ending their reign at 340 days.

[130] In January 2021, on nigh 2 of Wrestle Kingdom 15, Taguchi and Wato, unsuccessfully challenged El Desperado and Yoshinobu Kanemaru for the IWGP Junior Heavyweight Tag Team Championships.

[131] In July at Wrestle Grand Slam in Tokyo Dome, Taguchi and Rocky Romero challenged El Phantasmo and Taiji Ishimori for the IWGP Junior Heavyweight Tag Team Championships.

[135] In January 2022, Taqguchi and Romero, competed in a three-way tag-team match, for the IWGP Junior Heavyweight Tag Team Championships, where they and Ishimori and Phantasmo, failed to defeat champions Robbie Eagles and Tiger Mask.

[136] At NJPW New Years Golden Series later in January, Wato and Taguchi (now called Six or Nine) successfully captured the IWGP Junior Heavyweight Tag Team Championships.