The object of the game is simple: connect same-colored dots to clear them from an ever-refilling board to get the highest score possible in 1 minute. You do this by connecting as many dots as possible horizontally or vertically, and by making squares with your finger to make them disappear. Your score is counted by how many dots you eliminate in 60 seconds.
The game initially will remind you of Bejeweled, but with an elegant, minimalist graphical style. The all-white background makes the primary colors of the dots stand out. Simple bouncing animations as dots fall add to the overall feel, while musical notes chime with each extra dot you connect together in a chain.
The key to getting big scores in Dots is a trick that you won't find in the app description or in the game: make squares. When you connect dots in the shape of a square it removes all of the dots of the same color and replaces the board with dots that are also not that color. In other words, making squares actually makes it easier to make more squares by removing colors from the board and giving you a higher concentration of the colors that are left over. I have to admit this little trick was lost on me when I initially wrote this review and it changes my view of the game entirely. Making squares becomes the primary mission in the game, so you'll constantly be scanning the board to set up squares.