if it hasn't been heard of, it probably isn't very good :)
openings
The hedgehog is a real opening and it's been discussed here a few times before. Black accepts an extremely cramped but solid position.
Its a line of the english opening I belive so you may want to look at the english if you can't find it under hedgehog
Here's an interesting link on how to play against it:
http://nezhmet.wordpress.com/2007/06/11/attacking-the-hedgehog/
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has anybody noticed how some of the openings this site has nobody has ever heard of? my friend showed me a opening that every piece is protected and its not on here