|~ Mecha Courage|
Mecha Courage (sometimes spelled "Mecha-Courage") is a robot dog who was created by Di Lung to replace Courage and a villain in Courage the Cowardly Dog. He appeared as the main antogonist of the 2nd episode "Courage vs. Mecha-Courage" of season 3 of the series.
Di Lung did not think that Courage was a good enough dog for his owners Eustace and Muriel. So he designed Mecha Courage as the perfect pet for the elderly couple. Courage didn't like it one bit. Mecha Courage kept doing nice things to Eustace.
Courage and his robot counterpart fought in a gladiator match in an arena resemblaming the Roman Colosseum. Mecha Courage kept beating Courage up using the same weapons, only stronger and more destructive. Courage eventually won because he endured all of its attacks until he ran out the machine's batteries.