Sigma (シグマ) is an Ultimate Toon Link player from Japan, considered the best Toon Link player in the world. He is currently ranked 24th on the Japan Player Rankings, with high placements in Japanese tournaments, remarkably placing 3rd at Sumabato SP 12 and having set wins over ZAKI, HIKARU, and komorikiri.
In SSB4, Sigma was also a Toon Link player and was considered as the best active Toon Link player in the world. Sigma is currently ranked 12th on the JAPAN Power Rankings and 72nd on the Panda Global Rankings 100. He has taken sets off of players in Smash 4 such as komorikiri, ESAM, HIKARU, Earth, Nietono, ikep, Taiheita, Shogun, and Umeki.