If you play like a gajillion hours of xbox and then go to the main menu of the xbox dashboard and press xy (or maybe yx..) the green X will spin in circles a little bit.
let me know if this has happened to you.
BTW I am not lying, this is all really happened to me...
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[quote]so...whats so good about it?[/quote] Its frigin awesome! because... I am the only person that has unlocked it so far. (that I know of). And the purpose of posting this was to see if anyone else had this happen to them; and see if they know exactly how it happened.