Guard Robo

Guard Robos are robots built by Doctor Eggman in the video game Sonic Battle. According to Rouge, Eggman built these robots to sell them to make some extra cash. They are encountered numerous times in the game in areas such as Central City and Night Babylon where they are protecting areas like a lab, bar, casino, etc. Rouge also uses them as practice robots when she's trainig Emerl to be a master thief. They appear to resemble and have the same attacks as Chaos Gamma. They are also like the E-121 "Phi" robots, both being a black/gray/white color, but both being a copy of someone else.