Pin-up Girls is a typical spot the difference puzzle game where your objective is to find the differences between two pictures placed side by side. At the start of the game you can choose to play either with hints on or off. Use your mouse to click on the differences that you have spotted between two pictures to score points. In each level you have to find at least five differences to progress to the next level. Each time you play the game five random differences shown in each level from a pool of pre-set differences which makes the game more fun to play. The game has twelve levels with twelve stunning bikini ladies. Try to complete all the levels as fast as possible to score higher points. If you able to spot all the five differences very quickly you will also earn some bonus points. In each level you will see a picture of a beautiful girl wearing bikini. Try not to get diverted by their looks while playing the game and try to finish each level as soon as you can to score higher.