As pleasingly eclectic as ever, Psychonauts and Kinect Party developer Double Fine announced earlier this month that its next game is a rhythmic score-attack game made for a weird hand-tracking controller. If you had trouble imagining just what Dropchord would look like, here, the debut trailer shows off its sparkle-sparkle boom-boom gesture-gesture action.

The Leap Motion is a magical little box which tracks the movement of your hands, bringing touchscreen gesture-like controls to thin air. It's due to launch in May at $79.99.

Developed together with Dracogen and Leap Motion, Dropchord is slated for release on PC and Mac later this year. A touchscreen version for iOS is in the works too.