Red Bull Creation 2013 finalist: Skullduggery Systems, Sky Striker

Via SkullduggerySystems: "Modeled after the old "high striker" or "test your strength" carnival games... but taken to the extreme! 40 feet tall, with over 2,000 LEDs, over 3,000 lines of code, a Raspberry Pi, an Arduino Uno, a big hammer, and one emergency room trip."