Play a mini game before each of the spot the difference puzzles! In the mini game; shoot bubbles of the same color next to each other. When three or more are touching they will pop. Pop all of the balloons on the screen before it reaches the bottom to get to the picture. When you’re at the picture, click to point out all of the differences between the two pictures. Earn as many points as you can while working as fast as you can. Can you find all the differences throughout the USA?