Khata's Gold is an interactive demonstration of how system design affects human performance. Based on classic experiments in human factors/ergonomics, this demonstration shows how a flawed "control-display" mapping (i.e., human- system interface) can impair performance. Please don't be fooled by the entertaining, arcade-like quality of this demonstration. The message, which is very serious and also timely, is that errors are not "random" and can be avoided.