This is a two player game. The circuit (based on the provided code) initiates a sequence of signals and then it captures the response from the two players and identifies the faster one. It uses a buzzer, two buttons and two LEDs. After the students masters the project they can develop many different variations of similar games based on sounds and lights produced by the LEDs. Supply voltage is 4.5 6V. Requires a USB Cable. You will need to purchase at least one USB programming cable, #780080 (we recommend multiple cables) for your students to be able to download the code they develop to the Genie controllers. Teacher's Assembled Demo.