

Introduction
Atsushi Maruyama (丸山 敦, Maruyama Atsushi, born on June 1, 1976 in Osaka, Japan) is a Japanese professional wrestler, best known for his work with Osaka Pro Wrestling under the ring name Tigers Mask (タイガースマスク, Taigāsu Masuku). The ring name and original wrestling attire were inspired by the Hanshin Tigers baseball team. On February 8, 2014, Tigers Mask announced his resignation from Osaka Pro, effective April 20, after which he will begin working in the Tokyo area under a new persona. On April 22, 2014, Maruyama made his first appearance unmasked, announcing that in the future he would be working under his real name. Maruyama also adopted two new ring names, when he started to work for Pro Wrestling Heat Up as Akatora (アカトラ, Akatora) and Kaientai Dojo as Teppei (TEPPEI).
In wrestling
- Finishing moves
- Akuma Kumikyo (High speed roundhouse kick to the head of a seated or kneeling opponent, with a tonfa hidden in his shin guard)
- Mangetsu no Yoru (High speed roundhouse kick to the head of a seated or kneeling opponent)
- Tigers Suplex Hold (Bridging tiger suplex, sometimes while applying a wrist-clutch)
- Signature moves
- Brainbuster
- German suplex
- Grounded octopus stretch
- Roundhouse kick
- Sitout double underhook powerbomb
- Snap belly to back suplex
- Tigers Special (German suplex transitioned into a reverse rolling prawn hold)
- Ura-nage
- Zatopec (Hammerlock guillotine choke with bodyscissors)
Championships and accomplishments
- Dragon Gate
- Open the Brave Gate Championship (1 time)
- Dramatic Dream Team
- Ironman Heavymetalweight Championship (2 times)
- IMGP World Heavyweight Championship (2 times, current)
- Kaientai Dojo
- Independent World Junior Heavyweight Championship (3 times)
- Mexican Wrestling Federation
- MWF World Junior Heavyweight Championship (1 time)
- Michinoku Pro Wrestling
- Tohoku Tag Team Championship (1 time) – with Flash Moon
- Iron Man Tournament (2008)
- Osaka Pro Wrestling
- CMLLL World Super Mexico Championship (1 time, current)
- Osaka Pro Wrestling Battle Royal Championship (1 time)
- Osaka Pro Wrestling Owarai Championship (2 times)
- Osaka Meibutsu Sekaiichi Championship (1 time)
- Osaka Pro Wrestling Championship (4 times)
- Osaka Pro Wrestling Tag Team Championship (3 times) – with Billyken Kid (1) and Black Buffalo (2)
- Osaka Tag Festival (2006) – with Flash Moon
- Osaka Tag Festival (2007) – with Billyken Kid
- Osaka Tag Festival (2011) – with Black Buffalo
- Tenno-zan (2007)
- Pro Wrestling Zero1
- NWA International Lightweight Tag Team Championship (1 time) – with Billyken Kid
- Boutwell, Josh (2010-04-23). "Viva La Raza! Lucha Weekly". WrestleView. Retrieved 2010-04-24.
Open the Brave Gate Title: Tigers Mask def. Super Shisa (c) to win the title [...] Osaka Pro's Tigers Mask upsets Super Shisa for the Brave Gate Title
- 【大阪リポート】メインの新世代タッグマッチはDDTの未来を見せた激闘28分…フルタイム間際に竹下が樋口をジャーマン葬/飯伏、菊くいワールドを凌駕。菊タローに変身!!/ササダンゴと丸山の一戦はIMGP世界ヘビー級戦に。感動の超大作が誕生!?. Dramatic Dream Team (in Japanese). 2015-07-12. Retrieved 2015-07-12.
- 9月18日試合結果. Osaka Pro Wrestling (in Japanese). 2013-09-18. Archived from the original on 2013-09-21. Retrieved 2013-09-20.
- Boutwell, Josh (2010-07-30). "Viva La Raza! Lucha Weekly: Dragon Gate". WrestleView. Retrieved 2010-07-31.
Title vs. Title: Open the Brave Gate Champ: Tigers Mask def. Osaka Pro Champ: CIMA to win the Osaka Pro Title and retian [sic] the Brave Gate Title!