Anti-Robot Photonic Multi-Cannon

G.B. Blackrock created the Anti-Robot Photonic Multi-Cannon as a new line of defense against attacks from Transformers, particularly attacks on his oil rigs and factories.

Marvel The Transformers comics
The military got wind of Blackrock's future public unveiling of his weapon, and sent General Capshaw to dissuade the businessman from his media event, but Blackrock ignored his concerns. The radio later reported the upcoming event, which the Autobots heard and leading Jazz to personally meet Blackrock and explain to him the distinction between the Autobots and the Decepticons.

At Blackrock Motor Speedway, Blackrock had set up an event, audience, media, and all, and revealed the Anti-Robot Photonic Multi-Cannon, which failed to work in a demonstration against a robot mock-up. Circuit Breaker stepped out of the audience and revealed that she used her abilities to sabotage the weapon, intending to have Blackrock declare her the actual weapon against robots in the interest of preventing being a public laughingstock. At that time, Starscream and Frenzy attacked, prompting Jazz and Wheeljack into battle. Circuit Breaker attacked both sides indiscriminately, causing the Decepticons to flee. The mock-up robot was destroyed by Circuit Breaker as Blackrock begged her not to kill the Autobots.