Great Decisive Battle! The Super 8 Ultra Brothers
After Rena had made everyone remember their original hope, Asuka realize that his original dream which is to become a baseball player along with Gamu, remembering his dream as well, causing their transformation items to appear on their hand and transforms into Dyna and Gaia. After being supported by the citizens, they proceed to free Tiga from the cylinder and defeat the last three monsters King Silvergon, King Goldras and Alien Super Hipporit.
However, the mysterious cloaked being and many other similar looking beings use their magic to revive the souls of the defeated monsters. The souls combine to form Giga Khimaira. The monster knocks down the three Ultras, however, their friends and the city continuously cheer them on and they rise up to right Giga Khimaira. Soon, Hayata, Dan, Go, and Seiji transform into the Ultra Brothers with the help of their wives. Together, they free Ultraman Mebius from his imprisonment. The five then join Tiga, Dyna, and Gaia help fight Giga Khimaira. After repelling several attacks from Giga Khimaira, it flees into space. The Super 8 Ultra Brothers follow it and finish it off. However after returning to Earth, the cloaked beings once again rise.
The mysterious beings, called Black Silhouette, fuse to become the Giant Black Silhouette. The Giant Black Silhouette states that he will make more powerful monsters and bring despair to Earth. Tiga however replies back that it's useless and that the light in everyone's heart will always protect them. The Super 8 Ultra Brothers combine their powers to use the Superior Myth Flasher and destroy the Giant Black Silhouette.
- Height: 55 m
- Weight: 45,000 t
- Home World: Planet Earth (Superior Universe)
- Dyna Crystal: The crystal on Dyna's forehead. It is presumed that it functions similar to his original counterpart's crystal.
- Eyes: Dyna can detect the presence of hidden enemies
- Protectors (プロテクター Purotekutā): The yellow bands on his upper body, they are indestructible pieces of armor, the sturdiest portions of his anatomy.
- Color Timer (カラータイマー Karā Taimā): A standard Color Timer, but unlike its Neo Frontier counterpart it is green in color and shows no sign of a time limit.
Asuka thrusts the Lieflasher into the air, it then unfolds while he shouts "Dyna!" and transforms into Dyna.
Flash Type (フラッシュタイプ Furasshu Taipu) is Ultraman Dyna's default form. It is similar to Ultraman Tiga's Multi Type. This form is assumed to have the same powers as the original Dyna's form of the same name. As he did not have much on-screen time, many of his abilities are still unknown.
- Maximum Flight Speed: Mach 8
- Maximum Running Speed: Mach 3
- Maximum Underwater Speed: Mach 2
- Maximum Underground Speed: Mach 2
- Maximum Jumping Height: 1,000 m
- Arm Strength: 80,000 t
- Grip Strength: 60,000 t (human equivalent 60 kg)
- Solgent Beam (ソルジェント光線 Sorujento Kōsen): Ultraman Dyna’s signature move. Dyna positions his hands in a plus "+" sign, and fires an electric blue ray. It can destroy monsters in one shot.
- Vulcan Swing: Ultraman Dyna can swing monsters/enemies in the air by grabbing their tail and tossing them to the sky. However, unlike the original counterpart, he can perform this in Flash Type.
- Ultra Palifie (ウルトラパリフィー Urutora Parifī): Along with Gaia, Dyna can fire a purifying beam by raising their right arm. This was used to release Tiga from Alien Super Hipporit's capsule.
- Ultra Grand Wall (ウルトラグランドウォール Urutora Gurando Uōru): A combination shield that can reflect enemy attacks.
- Excellent Reflection (エクセレント・リフレクション Ekuserento Rifurekushon): An energy wave used to repair the damages done by Giga Khimaira.
- Ultra Superior (ウルトラスペリオル Urutora Superioru): Dyna and the other Super Ultra Brothers fire their respective finisher attacks.
- Illusionic Slugger (イリュージョニック・スラッガー Iryūjonikku Suraggā): When a blue variant of the Ultra Superior is fired at the Eye Slugger, it can multiply into many copies.
Glitter Version (グリッターバージョン Gurittā Bājon) was born from mankind's hope to defeat the Giant Black Shilloute.
- Glitter Solgent Beam (グリッターソルジェント光線 Gurittā Sorujento Kōsen): An upgraded version of his Flash Type finisher. It is said to be 10X more powerful than the original.
- Superior Myth Flasher (スペリオルマイスフラッシャー Superioru Maisu Furasshā): A combination attack where the Super 8 Ultra Brothers fire their respective finisher attacks.