We used kilobots to teach visitors to UCSF about T-Cell engineering to fight cancer. The kilobots were programed to be either antibodies with different selectivity, or signaling domains with varying activity. The correct combination of signaling domain and antibody would selectively disable the robots that represented the cancer cell while not disabling the normal cell robots. The structures of the cells were created by Thao Do using hot glue. We will present a variation of this at the Robotics themed NightLife event at the Cal Academy of Sciences on March 26th.