Use the Mouse to move Geri around. Use him to hit the Pincones, causing them to multiply and get more Pinecones. If you get 200 Pinecones you win. Try to get the high score. Use the number keys 1-5 to purchase hazards to help knock the Pinecones around, and place them with Space and the mouse.
This project was originally a physics test for another project that didn't go anywhere. I figured that since I had it, I might as well make a game out of it, and I was thinking about pine cones at the time. I think you can piece the rest together.