The most amazing JavaScript application ever [closed]

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I just saw the Google Pacmen game and I think it's the most professional JavaScript application that I ever saw!

What other application do you know about, that are in this level of profession?

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You may want to check out Chrome Experiments and Processing JS for some impressive stuff.

Or what about a JavaScript port of Wolfenstein 3D? ... Or this 3D Tetris clone called Torus?