He competed in various of the promotion's signature events such as the Saikyo Tag League, making his first appearance in the first-ever edition of the event from 1999, where he teamed up with Shunme Matsuzaki and scored a total of two points after going against the teams of Tomoaki Honma and Ryuji Yamakawa, Shadow WX and The Winger, and Mike Samples and Jun Kasai.[4] At the 2000 edition, he teamed up with Abdullah Kobayashi and placed themselves in the block A where they failed to score any points after competing against the teams of Abdullah the Butcher and Shadow WX, Men's Teioh and Daisuke Sekimoto, and Daikokubo Benkei and Shunme Matsuzaki.[5] At the 2001 edition. he teamed up with Hideki Hosaka and scored a total of five points after going against the teams of Fantastik and Ryuji Ito, Men's Teioh and Daisuke Sekimoto, Abdullah Kobayashi and Daikokubo Benkei, and Masato Tanaka and Shunme Matsuzaki.[4]
Maruyama also competed in a variety of different tournaments hosted by BJW. Between March 18 and 20, 2001, he took part in a tournament to determine the first ever BJW Heavyweight Champion which he won after defeating Mad Man Pondo in the quarterfinals, Wifebeater in the semifinals, and John Zandig in the finals.[6] A week after, he competed in a tournament for the vacant BJW Deathmatch Heavyweight Championship, where he defeated Jun Kasai in the first rounds but fell short to Justice Pain in the quarterfinals.[7] At the 2001 edition of the Six-Man Maximum Tag League, he teamed up with Hideki Hosaka and Shunme Matsuzaki and won the whole tournament by topping the only block with a totl of five point after competing against the teams of Men's Club (Men's Teioh, Daisuke Sekimoto and Ryuji Ito), Jun Kasai, Mad Man Pondo and Ruckus, and Skinheads (Daikokubo Benkei, Abdullah Kobayashi and Naoki Numazawa).[8]
He is known for competing in various of the promotion's signature events such as the Fire Festival in which he made his first appearance at the 2008 edition where he placed himself in the block A where he scored a total of two points after competing against Togi Makabe, Masaaki Mochizuki, Shinjiro Otani and Kohei Sato.[11][12] At the 2012 edition, he placed himself in the block B where he scored a total of two points after going against Masato Tanaka, Daisuke Sekimoto, Kohei Sato and Muhammad Yone. At the 2015 edition, he placed himself in the block A where he scored a total of six poinsta after going against Kohei Sato, Masato Tanaka, Yusaku Obata, Fujita Hayato and Masakado.[13][14] At the 2016 edition of the events, he scored a total of fifteen points in the only active block after going against Shinjiro Otani, Yusaku Obata, Masato Tanaka, Ryota Hama, James Raideen, Kohei Sato, Shogun Okamoto, Hayato Fujita and Buffa.[15]
As for the Furinkazan, he made his first appearance at the 2009 and first-ever editinon of the tournament, where he teamed up with long-time tag team partner Kohei Sato, placing themselves in the block B, where they scored a total of five points after competing against the teams of Masato Tanaka and Masaaki Mochizuki, Shiro Koshinaka and Hajime Ohara, Rikiya Fudo and Shito Ueda, and Tsutomu Oosugi and Hercules Senga.[16] He scored his best result at the 2010 edition in which he alongside Sato came out victorious by toppling the block A with eight points after outmatching the teams of Akebono and Shinjiro Otani, Phil Davis and Sean Davis, Hikaru Sato and Munenori Sawa, and Kintaro Kanemura and Takuya Sugawara.[17] At the 2011 edition, he teamed up with Sato again in the block B and scored five points against Fujita Hayato and Masato Tanaka, Akebono and Daichi Hashimoto, Schwarz and Weiss, and Mineo Fujita and Shito Ueda.[18] At the 2013 edition, he and Sato defeated Tank Nagai and Yoshikazu Yokoyama in the first rounds, obtained a walkover victory in the second ones, but fell short to Daisuke Sekimoto and Yuji Okabayashi in the third rounds.[19] At the 2014 edition, Maruyama teamed up with Daemon Ueda to defeat Atsushi Onita and Masashi Aoyagi in the first rounds and then fell short to Masato Tanaka and Takashi Sugiura in the second ones.[20] At the 2016 edition, he teamed again with Kohei Sato and fell short to Kai and Yusaku Obata in the first rounds.[21]