Robots kill robots

“Robots kill robots,” chanted the robots as they marched, rolled, tumbled, and hopped into the arena.
The crowd roared, thirsty for blood.
In the last three seasons, they got it. Robots had to consist of 50% organic components by weight.
And not just “dead” weight, either. No useless blood like earlier models used. Critical functions had to be wired through the meat and gristle, forcing the engineers to take risks and make difficult choices.
One engineer went so far as to sacrifice his own brain for his creation.
He’s over there, on fire.
Should have used a monkey, poor soul.