2012 on my first try; 617 on my very first swing, although it should be at least 150 more since I ****ed up on the second swing. The trick is you want to aim pretty much straight, flush to the ground as hard as you can on your first shot sicne you can go under the giraffe's legs. Also, if you strike a giraffe in its mouth, it will spin you around in the direction you want to go in VERY fast. YOu do want to avoid hitting the sky, the area above the screen; stupid vulture. Good luck! EDIT: lol 1178 on my first swing my second try! And 3046 for the total!
I found a glitch in the game which will slow it down to a crawl - makes it easier to time your aim and power! -- droxford