The purpose of Block Blast Puzzle is to gain as much points as you can by tapping on adjacent blocks of the same color (minimum two blocks). The more blocks are connected, the more points you get. For example, if you tap on a group of 2 blocks you will only gain 1 point, but if you tap on a group of 3 blocks you will gain 3 points, for 10 blocks you will get 45 points and for 30 blocks 435 points.
You start at level 1 with only 3 colors on your table. While you advance and collect more points, the number of colors on you table will increase making it more difficult for you to group blocks with the same color.
From time to time, some powerups in form of a rounded block may appear. A powerup can help you blast an entire line, or all the blocks of a specified color.
You also have two buttons (delete button and undo button) that allows you to delete one block or to undo your last move. You can only use those buttons one time for free.
Enjoy the game.