Chaos Emerald Saga
When Dr. Eggman, Decoe and Bocoe were left stranded in the middle of the African savanna after the Egg Fort crashed, Decoe and Bocoe took passenger seats inside the E-65 Gorru-Gaooh and went searching for Sonic while Dr. Eggman remained in the Egg Fort. The trio eventually stumbled across two conniving humans planning to burn down the jungle and cause heavy rains. One of the men broke down before them, thinking the giant robot was the spirit of the jungle, and distracted the robotic trio just as Sonic appeared. Decoe and Bocoe ordered Gorru-Gaooh to attack, and it beat its chest where they were sitting in a display of power, much to two robots' annoyance. Sonic quickly toppled Gorru-Gaooh before it continued the chase, using its camouflage ability to blend into the jungle. It initiated several surprise attacks on Sonic, catching him off-guard until Sonic began searching for the robot with his ears instead of his eyes. Once Sonic knew the jungle robot's position, he rushed Gorru-Gaooh and knocked it to the ground before speeding off and taunting the robot and Dr. Eggman to chase him. Luring the villains to a construction site, Sonic discovered the camouflage ability of Gorru-Gaooh's only worked with nature, not artificial objects like diggers. Using this to his advantage, Sonic proceeded to batter the robot at top speed, despite Dr. Eggman's efforts to destroy every machine on the construction site that was not his own. But as soon as Tails passed Sonic a Ring, the fight was over as Sonic proceeded to plow straight through the Gorru-Gaooh's armor with a Spin Attack and destroy it.
Powers and abilities
Gorru-Gaooh uses camouflage technology that renders it invisible. However, its camouflage does not work around metal