Yeah… Bullet Rocks and if you don’t believe it check this out : http://d.turboupload.com/d/1327748/Bullet_rocks.blend.html
This is done with Blender Preview 7e so if you wand to play with it you must have it. You can find it to the sticky thread on the top of this forum.
After you load the file just press the p key to run the game engine.
Done in 15 mins. So don’t shoot bullets to me.