Kagerou

The prototype and brother of Shadow-Maru. He is a large ninja robot of appearance similar to Shadow Maru, and transforms into a car mode and a Rodan-like draconic mode. He went renegade when he discovered that his A.I was to be deleted after testing. So, he fights against the Brave Police, who are assigned with the task of capturing him, and later killed by the hands of his brother Shadow-Maru. He is caught by Shinjo and his AI taken to be installed in a submarine, which sinks. His AI is later used by Excellent Inc., a company that main antagonist Nueva runs, to build enemy robots with Super AI Victim and his Chieftain series use the AI that was stolen from Kagero.

(Source: Wikipedia)