I plan to do it through moving the head into the direction the player has to go. The rotating could probably be used in a real game but I don´t think that the movement can really be done like that.

 Quote:

...dodging bullets matrix style!...

That is a great idea, at least for a minigame.
It works already very reliable as long as there is no bright light directly behind you (at least when substracting the background without the playing person).

Thanks for your comments \:\)