It's been a good week for rolling robots. Sphero, the robot ball you control with your smartphone, is expanding its reach and adding more apps that take advantage of its internal lighting and movement capabilities. Last week, Sphero maker Orbotix announced that it had launched internationally, offering Sphero in 95 countries outside the US, and that it would be "rolling out" two apps — Chromo and MacroLabs — to its iOS and Android stores starting sometime in April.

Chromo, a memory game, flashes a series of colors and asks users to rotate the ball to match them. MacroLabs, the second app, is quite a bit cooler. It lets users program and save sequences of movements for multiple Spheros, turning the ball into a self-driving, color-changing robot. In the video below, it's shown setting six balls to perform a choreographed routine, although we can't really imagine someone spending nearly $800 to make a squad of Spheros dance.

The apps are free, but the ball will run you $129.99 in the US or $159.99 elsewhere. If you're considering ordering internationally, Sphero is offering a 10 percent discount right now with the promo code "GETROLLING."