The exterior of the ring, which is disguised as a skate park
Robot-Fighting Ring was an illegal fight-club for Robots where Faye and Bubbles used to work. It was operated by Corpse Witch and was disguised as an indoor skate park. In addition to underground fighting, illegal betting also took place here.
It was owned by the
Corpse Witch. Bubbles and Faye Whitaker used to work there. Their work included repair and maintenance of the robot fighers.
After investigation of underground fights and betting by
Roko Basilisk and intervention of Spookybot, illegal operation had ceased and ownership had been transferred to Jeremy.
To avoid damage to the AI's, all fighters use triple-reinforced AI drives
. However, their chassis take significant damage, and Faye and Bubbles worked to repair them between fights.
All fighters worked there voluntarily. Nobody fought to pay off debts or as an indentured servant.
Some of the fighters fight in the Ring, because there aren't many options left for them. 
The list of fighters includes: