|This article is about a/an Giant Robo in Hyakujuu Sentai Gaoranger.|
"Hyakujuu Fusion! GaoMuscle!"
Hyakujuu Gattai GaoMuscle (百獣合体ガオマッスル Hyakujū Gattai GaoMassuru): Called the "Muscular Warrior" (筋肉の戦士, Kinniku no Senshi), it is the combination of GaoGorilla, GaoBear & GaoPolar, GaoBison & GaoEagle. GaoMuscle originally served as a replacement while GaoLion was badly injured. It wields an anchor and chain, called the Muscle Anchor (マッスルアンカー, Massuru Ankā), and two shoulder cannons called the Muscle Crackers (マッスルクラッカー, Massuru Kurakkā). Its attacks include the Muscle Bear Hug (マッスルベアハッグ, Massuru Bea Haggu) technique, the Ice Fang Blaze: Bear Strike (氷牙炎滅ベアーストライク, Hyōga Enmetsu: Beā Sutoraiku) (which unlike GaoLion, GaoGorilla is able to use without the debilitating aftereffects), and its finishing move Unmatched Strength: Muscle Lariat (剛力無双マッスルラリアット, Gōriki Musō: Massuru Rariatto), where it strikes with energized punches from both arms. Its suit actor was Hirofumi Fukuzawa.
"Hyakujuu Armament! GaoMuscle Striker!"
GaoMuscle Striker (ガオマッスルストライカー, GaoMassuru Sutoraikā): First used in Episode 27 by having GaoRhinos & GaoMajiro replace GaoBison and GaoEagle as GaoMuscle's lower torso. It was formed after Vase Org trapped GaoKing and GaoHunter Justice in another dimension. Attacks with Strong Kick Blast: Rhino Shoot (強蹴爆砕ライノシュート, Kyōshū Bakusai: Raino Shūto) finisher and Striker Bomber attack.
Striker Cross Horn
"Hyakujuu Armament! GaoMuscle Striker Cross Horn!"
GaoMuscle Striker Cross Horn (ガオマッスルストライカークロスホーン, GaoMassuru Sutoraikā Kurosu Hōn): Used only in Episode 38 by having GaoDeers replace GaoBear in the GaoMuscle Striker formation. Attempted to use Deers' healing powers to free GaoKing Spear and Knuckle from Animal Tamer Org's control but was stopped by Gao Shark and Tiger and eventually was taken over after the Gaorangers were driven out of the cockpit.
"Hyakujuu Armament! GaoMuscle Striker Spear!"
GaoMuscle Striker Spear (ガオマッスルストライカースピアー, GaoMassuru Sutoraikā Supiā): Used only in Episode 47 against Steam Engine Org by having GaoGiraffe replace GaoPolar in the GaoMuscle Striker formation though it wasn't successful and was easily defeated.
Not in series
- GaoMuscle Shark & Tiger (ガオマッスルシャーク＆タイガー, GaoMassuru Shāku ando Taigā) / GaoCracker (ガオクラッカー, GaoKurakkā): It is where GaoShark and GaoTiger could replace GaoBear and GaoPolar in the GaoMuscle formation. While the official art book lists this formation as GaoMuscle Shark & Tiger, many resources call this formation GaoCracker. Although there was an official picture in the Super Sentai Robo Art Collection, it never appeared on the show.
- GaoMuscle Magnum (ガオマッスルマグナム, GaoMassuru Magunamu)
- GaoMuscle Striker Longhorn (ガオマッスルストライカーロングホーン, GaoMassuru Sutoraikā Ronguhōn)