063 xobX Puzzle
Update: This game is no longer available.
063 xobX is a mostly HTML-based puzzle game of ten (10) levels that also includes some Flash-based elements. As with other games like this, you play the game by using the clues provided with each level to make it to the next, sometimes by manually changing the URL. You will need to know how to manipulate images, RGB values, and HTML source code to make it through the game. Other Web-related skills may also be helpful or necessary. Use the comments if you get stuck, someone is sure to help out.
One of the nice things about this puzzle is that it contains three (3) rewards that it doles out as you progress through the game. Granted, these prizes are more fuel for the 360's marketing hype engine, and yet they are rewards just the same.
By making it through the puzzle, the site gives a chance to enter the XBox 360 VIP Premier Club by downloading the Destop Alerts widget, which will keep the buzz going up to the release of the console. It is no doubt a contest that is open to Australians and New Zealanders only. The rest of the world is still free to play the game anyway. Click.
Thanks to Jeremy for suggesting this one. =)