SKITTERBOT claims to be the fastest legged micro-robotic toy in the world. And from the video, which shows a swarm of these colorful $20 robo-cockroaches zipping around in a frenzy, I can imagine that might be correct.
Using the 5 function remote, SKITTERBOT invites you to race or battle your friends' bots (maybe if you install a laser on them?), and then recharge via USB. They should be available at Radio Shack and Toys R Us in the near future. [Desk Pets via Crunchgear and I4U News]