Play this: 'Rotational' adds a new dimension to 'Super Hexagon'

Terry Cavanagh's Super Hexagon is challenging enough without throwing depth and lateral movement into the mix, but that's what Kevin Messman has done with Rotational. Described by its creator as a "love letter to Hexagon," Rotational involves similar slip-through-the-shapes gameplay while shifting the action to the surface of a sphere.

Like Super Hexagon, the music is retro and the visuals are sparse; also like Super Hexagon, you're unlikely to last more than a few seconds before succumbing to the onslaught of geometry. It's a free download for both Mac and PC.