If you don't know anything about Harvey Birdman, why would you want it??
It's a good game for fans, but otherwise it isn't all that great, I loved it personally, as I am a rabid Birdman fan...
Do yourself a favor, get the DVD's and watch the show before you play the game, you won't get half of what's going on and you won't understand half the humor...
It's a very short game, but for a fan I paid full price and don't really regret it, but that's just me, would've liked to get it for 20 or less personally, but this works out for all of you...
-Goatman