G.B.R.-03 EnRyuu is a Brave robot from The King of Braves GaoGaiGar TV anime series, along with its related medias. Part of GGG's Mobile Unit, he can combine with G.B.R.-02 HyouRyuu to form ChouRyuuJin or with G.B.R.-06 FuuRyuu to form GouRyuuJin.
EnRyuu is the third G-Stone powered Brave robot created, 5 seconds younger than his older brother, HyouRyuu. Similar to his brother, EnRyuu can System Change into a truck mode (an effect of the System Change so far only seen in HyouRyuu and EnRyuu is the ability to transform into Semi-Vehicle Mode by keeping their legs in vehicle mode, while the upper torso is free to use weapons such as the Pencil Launcher), and uses the same A.I system, albeit they have opposite personalities. EnRyuu is boisterous and flamboyant, just like his flame motif, unlike his brother's cool-headed and calculating personality, which could cause the siblings to occasionally end up bickering with each other.
During sorties, HyouRyuu and EnRyuu can be deployed using the Bay Tower Base's numerous underwater tunnels that lead up into the surface or use the Triple Decked Flying Carrier's Mirror Catapult if a long-distance deployment is required.
EnRyuu also has a habit to crash whenever he tries to land properly after descending from the skies, which is also inherited by RaiRyuu. He seems to have managed to fix this, as shown FINAL Episode 1.