Ovivo is an inventive little platform game that has drawn raves since hitting IOS. What makes it so distinctive? Aside from the minimal, monochromatic aesthetic, Ovivo’s biggest hook is the ability to shift a little orb between the white and black areas of each level while gravity flows downwards in white and upwards in black. The point of all this is to make your way across uneven and often oddly-shaped terrain, and you can only do so by swapping the ball between the black and white areas. And there’s more to it than that: You may also need to use these shifts to build momentum for overcoming larger gaps or obstacles, and some levels even find you escaping large pursuers. It’s pretty mesmerizing stuff.