Kangaroos. Gazelles. Prost-hetics. Exoskeleton. Avatar. These are the words that first come to mind when Rahul Singh, the founder of Ultimate Striderz, introduces his associates to us. All of them are strapped on to jumping stilts and towering way above us lesser mortals at Shivaji Park. Earlier this month, Ultimate Striderz were part of the cheerleading crew at the IPL, doing backflips for sixes and jumping for fours.