Elvis the robocat - Engadget

"You just gotta see it to believe it. Carlo Bertocchini’s cat, Elvis, was involved in a truck accident that left him without use of his rear legs. Carlo built little Elvis a moving platform to regain some of his lost mobility, which the cat actually pilots by depressing two control buttons. We’re impressed that cats be trained to do such things but more importantly, we can’t stop laughing over this video."

Watch the video. It doesn't really look like the cat knows what it's doing. Also, if only the back legs were hurt, why is the entire cat in a box?

Wouldn't it just make sense to have his back legs in a wheel chair of sorts? You wouldn't even need motors. I guess the point is that we couldn't laugh at a cat in a big yellow box.