Although you can use the keyboard to whack the elves, this project is intended to be used with a Makey Makey, a "hammer," and contact pads. Keyboard: Use the Left, Down, and Right arrow keys to hit the left, middle, and right elves, respectively. Makey Makey: Connect your hammer to "Earth" on the Makey, and then connect your contact pads to the "Arrows" contacts on the Makey. Plug your Makey into the USB port on your computer, and you're ready to play.
