The object of the game is to make a complete horizontal line. Once this line is made, the blocks found in the line will clear from the Matrix.
Hard Drop and Soft Drop
As your game improves and you begin to pay attention to the Tetriminos in your Next Queue, you might find yourself getting a little impatient waiting for the piece to fall. You have two options to speed up the game--the Soft Drop and the Hard Drop!
The Soft Drop is performed by pressing the DOWN Arrow key--the Tetrimino will fall much faster than usual while you hold down the key, but as soon as you let go the piece will resume its normal pace. You retain complete control over the piece while doing a Soft Drop.
The Hard Drop is much less forgiving--hit the Space Bar to cause the Tetrimino to fall straight down, forgoing any further opportunity to move it. The Hard Drop is great for timed games where your goal is to get pieces into position as quickly as possible. Pay attention to the Ghost Piece to help you see where the Tetrimino will fall, and don’t press the space bar until you’re ready!
With a little bit of Practice, you'll be sure to evolve your Tetris Skills! Good luck!