Yes, as Kepler mention you must wear a sheep on your head if you are playing white, and a seal if you are playing black. Besides that blitz chess is just like normal chess but faster.
blitz question
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sometimes there's a rule that you can't knock off any piece or you lose.
also you can check out http://www.uschess.org/tournaments/2006/blitzrules.pdf
Are there cetian rule's to blitz game's other than playing fast of course.