Amy is the only one to discover Utsusemimaru's true personality beneath his arrogance and cockiness but, with Daigo's help, he drops the facade and the Kyoryugers become stronger as a result. In his final meeting with Dogold as Deboss Darkness Clock runs towards zero, he believes he will meet his end at the hands of Dogold and Endolf until Dogold turns on his ally. Utsusemimaru and Dogold land attacks on Endolf, freeing Dogold from the other knight's control, and he is saved from one of Endolf's attacks by Dogold enveloping him in his now broken armor. With their strength combined, Utsusemimaru and Dogold destroy Endolf, but afterwards the wounded Dogold still wishes to resolve their long standing issues. The two swordsmen rush at each other and perform one final slash, and Dogold falls, his spirit released to the wind. However, Dogold has landed a fatal blow and Utsusemimaru collapsed bleeding. He manages to survive thanks to the power of the True Melody of the Earth.
As Kyoryu Gold, Utsusemimaru announces himself as the "Thundering Brave and wields the Zandar Thunder sword. He also uses the unique Gaburi Changer to transform. In a special DVD, Kyoryu Gold wields the Golder Zandar Thunder. He and tends to say "Vanquishing evil in the name of heaven!" for his battle cry. As he is originally from the Sengoku period, he uses old ho norifics used by samurai, such as "de gozaru."