[6] At New Year`s Eve Toshikoshi, a cross-over event promoted by BJW in partnership with DDT Pro Wrestling and Kaientai Dojo on December 31, 2012, Ishikawa teamed up with Shinobu to defeat Yuki Sato and Taishi Takizawa.

[11] He took part in the Ikkitousen Strong Climb, first competing at the 2012 edition which took place between February 26 and March 26, sharing the B Block with Yoshihito Sasaki, Bad Bones, Brahman Shu, Shinobu and Kazuki Hashimoto, scoring a total of two points.

[12] He made his last appearance on the 2014 edition of the event, where he placed himself in the A Block and scoring a total of six points after going against Shuji Ishikawa, Yuko Miyamoto, Atsushi Maruyama, Shiori Asahi and Hideyoshi Kamitani.

[14] Ishikawa worked for a brief period of time in Pro Wrestling Noah, scoring his first match on January 19, 2013, on the third night of the NOAH The First Navigation, where he participated in a 12-man battle royal, competing against notable opponents such as the winner Genba Hirayanagi, Atsushi Kotoge, Marshall Von Erich, Ross Von Erich, Hitoshi Kumano, Harlem Bravado, Lance Bravado, Taiji Ishimori, Takeshi Morishima and Yoshinari Ogawa.

[16] He took part in one of the biggest events of the promotion, the Global Tag League, and he made his first appearance at the 2013 edition, where he teamed up with Yoshihito Sasaki, plaving themselves in the Block B and scoring a total of two points after going against the teams of Brave (Atsushi Kotoge and Takashi Sugiura), Chaos (Takashi Iizuka and Toru Yano), TMDK (Mikey Nicholls and Shane Haste) and Diamond Ring (Katsuhiko Nakajima and Kensuke Sasaki).