Intro:

Tetris is very simple to play, yet can take awhile to play fluently and achiving the highest score. Since there isn't that much to explain, you can quickly learn and enjoy to play Tetris. All you need is to control on the keyboard (if you're playing on computer).

Matrix:

Tetris is played on graphic grid on 10 by 20 called the Matrix. There are the seven shapes, called the Tetriminos, fall from the top of the Matrix. One at the time, the Tetriminos are being randomly selected.

Controls:

Moving the Teriminos is pretty simple. If using the computer keyboard, you would use the LEFT arrow to moves the block left and RIGHT arrow to moves right. The UP arrow would make it rotates by 90% clockwise. The DOWN arrow would make the block goes down quickly, which called the "Soft Drop". The Z button would goes counter-clockwise. Space would make it drop right away to the bottom, call the "Hard Drop".