A very simple game challenging your skills of estimation. All you have to do is click the shown co-ordinates on the stage. Then a red dot will appear showing the location of the point you were supposed to click. Then, you can see how close you are. Once you've checked, click the green flag or the stop sign to try again. If the dots are of a low quality, go into full-screen mode and then out again to fix the problem. There's not much else to put here.