Kuuga made his professional wrestling debut at SPWF Fierce Fighting October Series, an event promoted by Social Pro Wrestling Federation on October 13, 1995, where he teamed up with Asian Condor in a losing effort to Masahiko Kochi and Toyonari Fujita as a result of a tag team match.

He participated in Pro Wrestling Noah's Differ Cup in the 2003 edition under the name Kappa Kozo where he teamed up with The Great Takeru representing IWA Japan, falling short to Kenta and Kotaro Suzuki in a first-round match.

[10] At AJPW Zeus Festival 2017, an event promoted by All Japan Pro Wrestling on November 11, he teamed up with Gaina in a losing effort to Burning Wild (Jun Akiyama and Takao Omori).

His first appearance occurred at NJPW Lock Up on July 29, 2006, where he teamed up with Gentaro to defeat Hirooki Goto and Minoru.

[14] At NJPW Circuit 2010 New Japan Brave on April 30, he teamed up with Ryusuke Taguchi to defeat Akira Nogami and Tiger Mask.