Poster For Atari "River Rage"??

[l_lamb]

I've never heard of the game (maybe an 8-bit game) but the "autographs" all look like the same handwriting.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3371320631&category=45101

[Raccoon Lad]

I wish the'd show a better pic of whatever that is between his legs in the pic, looks like boxart.