Tensou Gattai Gosei Great

Gosei Great is the combination of Gosei Dragon, Gosei Snake, Gosei Shark, Gosei Phoenix and Gosei Tiger. It first appeared in episode 2 of the show and it also has its own theme performed by NoB.

Tensou Combination Gosei Great (天装合体ゴセイグレート, Tensō Gattai Gosei Gurēto) is the combination of the five Gosei Machines and Headders. It can execute the Headder Punch (ヘッダーパンチ, Heddā Panchi) and the Headder Kick (ヘッダーキック, Heddā Kikku) in the Headder Attack (ヘッダーアタック, Heddā Atakku) launching Headders. Armed with the Dragon Sword (ドラゴンソード, Doragon Sōdo), Gosei Great uses the weapon to execute the Great Strike (グレートストライク, Gurēto Sutoraiku) slash attack.

Modes
===Seaick Gosei Great===

After combining with the Seaick Brothers through the Seaick Armament (シーイック武装, Shīikku Busō), Gosei Great becomes Seaick Gosei Great (シーイックゴセイグレート, Shīikku Gosei Gurēto). Seaick Gosei Great can scan an opponent's weaknesses using the high sensitivity sonar Seaick Analyze (シーイックアナライズ, Shīikku Anaraizu) on its right eye. Seaick Gosei Great's final attack is the Seaick Strike (シーイックストライク, Shīikku Sutoraiku), a combination hammer-punch/downward slash move.

Landick Gosei Great
After combining with the Landick Brothers through the Landick Armament (ランディック武装, Randikku Busō), Gosei Great becomes Landick Gosei Great (ランディックゴセイグレート, Randoikku Gosei Gurēto). Landick Gosei Great's attacks include the Kuwaga Headbutt (クワガヘッドバット, Kuwaga Heddobatto) and the Tyranno Kick (ティラノキック, Tirano Kikku). Landick Gosei Great's final attack is the Landick Strike (ランディックストライク, Randikku Sutoraiku), using the Sai Headder's drill to execute a drop kick.

Exotic Gosei Great
After combining with the Exotic Brothers through Exotic Armament (エキゾチック武装, Ekizochikku Busō), Gosei Great becomes Exotic Gosei Great (エキゾチックゴセイグレート, Ekizochikku Gosei Gurēto). Exotic Gosei Great's final attack is the Exotic Strike (エキゾチックストライク, Ekizochikku Sutoraiku), firing five streams of flame from the Dragon Header and Exotic Brorthers.

Skick Gosei Great
After combining with the Skick Brothers through the Skick Armament (スカイック武装, Sukaikku Busō), Gosei Great becomes Skick Gosei Great (スカイックゴセイグレート, Sukaikku Gosei Gurēto). Skick Gosei Great's attack include the Skick Sonic Beam (スカイックソニックビーム, Sukaikku Sonikku Bīmu). Skick Gosei Great's final attack is the Skick Strike (スカイックストライク, Sukaikku Sutoraiku).