I have an electronic version that allows a special shot per ship that you still have, for instance the battleship hits 9 squares at once and the Sub shoots a torpedo along a row or column until it hits something. Some special shots can be used once per game as long as the ship is still alive, some can be used more than once. Also there are planes on the aircraft carrier that can be used for surveillance. I find it a much more interesting game than the standard one. :)