The Terraspheres

In this game that presents a real life physics engine that simulates gravity pretty well. You need to use your left and right arrow keys to move around and the up arrow to jump from sphere to sphere as you move around trying to destroy all the targets. Remove all the targets to move on to the next levels, and try to do it with as few shots as you can to give yourself the highest score you can. This is a game for one player that presents a progressive difficulty.