Zuma 

Zuma is a nice puzzle game in which you need to shoot balls in order to group three or more of the same color and make them disappear from the board. The balls will move in line towards the end of the maze, and your job is to prevent them from reaching the skull, or you will lose a life. You will shoot the balls with a frog who has two balls, so you may swap them by right-clicking.

From time to time, a coin may appear on the board. Shoot it with a ball to get a bonus. Moreover, some balls may contain a power-up which is activated when you group it with other balls and make them disappear. The power-ups include laser aim, pause the balls, extra points, among many others. The game offers two modes: Adventure and GaunLet. In Adventure mode, you advance level by level and the game gets more challenging as you progress. On the contrary, in Gaunlet mode, you can select any of the puzzles included in the game, but first you need to unlock them by playing them in the other mode. The game offers simple but nice graphics and sounds, and pleasant music.

To sum up, Zuma is an enjoyable puzzle game to pass the time, which will surely get your attention.