Happy Planets Joining the variety of matching-games available, the Happy Planets game created by LetPlayGirls. com stands out from the crowd throughout its futuristic design. The purpose of the game is to pass from one level to another while achieving the necessary scores to do so. How does it work? It is as simple as saying “Pluto”! With horizontal and vertical movements, players have to match at least 3 planets of the same kind to gain points. The longer the line, the higher the score level. Of course, tips can help you earn more bonuses, such as bombs that blow away planets around them or stars that blow away rows and columns. Not to mention the fact that this game is also educational: each character represents a planet from the solar system. For instance, the fiery Mercury appears as a powerful reddish pictogram, while Saturn can be undoubtedly recognized by its defining ring.