Spot the Difference description

Your little brother has drawn two cute pictures and would like you to spot the 10 differences between them. When the game starts, 2 images which contain multiple smileys will be presented. Observe the pictures carefully, then click to circle the different spots on a picture, and the same positions on the other picture will also be marked. If you are not able to make any moves, you may click the Hint button at the top of the screen to reveal one of the answers. The time you have spent is recorded at the top left corner. Remember not to click a spot without any difference, as 50 seconds will be added to the time you have spent if you do so. Can you score high marks by finishing the game quickly with the fewest number of hints?