|Maze collaborator, Andy Mcbride, at work|
The challenge is to get four steel balls through the maze and into a spiraling cup, where they ring a bell to let you know you're a genius. Looks easy? Don't be too sure. You can't see it in the picture, but the center of the maze counter-rotates against the perimeter part, mining an enticing adventure with with perils and pitfalls. Once you try Diaballique, you'll never go back to lackluster video games again.
See details here.