While the Energizer Bunny may get all the fame, Panasonic's "Mr. Evolta" robot actually gets out and does things. In 2008, powered by two of the company's AA EVOLTA alkaline batteries, the 17 centimeter (6.69 inch)-tall robot climbed up a 1,640 foot (500 meter) rope suspended in the Grand Canyon. The following year, pedaling a miniature tricycle, he completed the "24 Hours of Le Mans" endurance challenge. Last year, he took a leisurely 500-kilometer (311-mile) stroll along the highway from Tokyo to Kyoto. This year's challenge is a little different - there will be three EVOLTA robots, and they will be teaming up to complete the 230-kilometer (143-mile) Ironman Triathlon circuit in Hawaii.