Chris Hirst entertains guests in his “Robot Dance Party” costume during a party organized by the co-living house 20 Mission, home to many start-up entrepreneurs, titled “Too Big for Our House” in San Francisco, Calif., in July 2015. The house’s elaborate parties had been getting almost too large for their living space so they decided to rent a venue downtown to host the event. Hirst wears his robot suit, which has speakers built into it, to DJ events and parties around town.