Tigger-bot, however, can naturally bounce on its own. The secret lies in its leg mechanism that the researchers call "Linear Elastic Actuator in Parallel" or LEAP. It uses compression springs to support the structure's weight and a voice coil that pushes against the ground. We're sure it helps that the whole leg can move forward, backward, right and left instead of staying rigid.
It will likely take a long, long time before you can buy an actual bouncy Tigger toy based on this design, though. Disney hasn't even admitted that it's making a robotic version of the friendly feline. For now, you can watch the video below and imagine the hopping machine as Pooh's friend, happily bouncing on his tail.