Nobody commented on this one yet? It's actually quite fun even without sounds! I love the fact that the tree that is giving you ammo is the same thing that you must protect. It actually makes me think that, if this would be a fully fleshed game, would be cool if there would be different trees with different "fruits" (which means basically different weapons) and you have to prioritize targetting enemies based on the fruits that are more important to you.
This game is actually pretty solid and well executed. I made 8100 points in my second try! :D