The RC-Pit was never intended to be a training automaton. Red Circuit Armatures built it as an underground fighting machine — purpose-designed for automaton-vs-human combat in illegal venues. It is small, fast, and vicious, standing only 1.6 meters tall with a compact, low-centered frame built for speed rather than power. Its limbs are thin and quick, its strikes are targeted at nerve clusters and joint vulnerabilities, and it fights with a style that resembles a smaller, faster, dirtier version of competitive MMA. There are no safety limiters because none were ever installed.

Dogfighter's AI is trained on footage from thousands of underground fights, giving it an instinctive understanding of how untrained, desperate, or overconfident humans move and how to exploit their patterns. It excels against brawlers and street fighters — people who rely on aggression and pain tolerance rather than technique. Against trained martial artists, it adapts slower but compensates with relentless pace and willingness to trade damage. The machine doesn't care about getting hit. It registers damage for tactical purposes only, adjusting its approach when a limb is compromised rather than protecting it.

Red Circuit sells the Dogfighter through channels that don't appear on any corporate registry. Units arrive in unmarked shipping containers with no documentation, no serial numbers, and no warranty. Payment is in Φ, untraceable. The company itself is a shell — registered in a jurisdiction that doesn't cooperate with corporate authorities, staffed by people who use assumed names. The Dogfighter is, in every sense, a black market product designed for an illegal purpose, and it is extremely popular.