yo-yo hill. Yo-Yo Factory came out to Toy Fair to show off its customizable yo-yo system, designed for the serious aficionado. Everything from the weight, to the bearings, to the colors can be tailored to your taste and to greatly improve the performance for particular tasks. The Hyper Scanner measures how fast the toy spins in RPMs and rates your performance -- not unlike a high striker. Brand manager and member of the development team Ben McPhee demoed how much better his company's products are over a standard yo-yo by ratcheting it up to near 7,000RPM. This Engadget editor was also given a chance to prove his yo-yo mettle, but couldn't break the 3,000 mark. Of course, the game has plenty of blinking lights and loud noises to entice you to play -- including repeatedly shouting "hyper" at you in a thick Japanese accent. Check out the video after the break to see it in action.