How to Play:
First, select a difficulty. The harder the difficulty, the more possible block colors and faster they move down.
You will start with a blank grid and a single block made up of 4 sub-blocks. It will either be either a horizontal, vertical line or a rectangle. Swipe your finger up to change the order of the sub-blocks. Line up 4 or more blocks of the same type to remove them. When there is no block beneath another block, they will move down until they reach the bottom of the screen or another block. As time progresses the block will move down, or you can swipe it down, or swipe it left/right to move the blocks. As you progress your level will change and so will the difficulty.