Thanks for your answer and sorry for my English and I have a few more questions in mind . Actually it will be a ship and sea based game and ships will just have one animation - sinking -. And despite the fact that I'm doing this in Flash, it will be an Air app so game will be running in desktop. And what would happen if I make my ships 3D and a hundred ships come together? Will there be any difference If I make them 32-Direction 2D?