Brave (勇気,Bureibu) is the power source of the Kyoryugers (and the Future Kyoryugers as well as the Brave Dino Force Rangers). Brave could be charged within a Zyudenchi in the Spirit Base. Brave could also be in a human's heart, or spirit and could be intensified by singing, dancing, fighting against evil, or linking it by pressing a Zyudenchi button by shouting "Brave In !", overall depending on the number of persons who are linking this Brave intensifying, or even giving it to a Zyudenryu. At a certain amount of Brave, a normal person could become a Kyoryuger. The VX Zyudenchi (Victory Zyudenchi and Maximum Zyudenchi combined) require a huge amount of Brave and needs at least 6 Kyoryugers to be used. If the Carnival Zyudenchi is used as a transformation Zyudenchi by Kyoryu Red, he will overcharge and act as a Tyrannosaurus.