The squares cannot be linked diagonally. If an existing link is broken, just reselect the base color and plug the gaps to complete the link. The black cells are blocked. Earn bonus points for speed. Don't forget to submit your scores and compete against other global crazy cubsters! Link every pair of like colored markers, by pressing LEFT CLICK to complete the cube.

GameCanvas is a Canvas with additional capabilities; it provides methods for immediate painting and for examining the state of the device keys. These new methods make it possible to enclose all of a game's functionality in a single loop, under control of a single thread. To see why this is attractive, think about how you would implement a typical game using Canvas:
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