Tetris is a video game developed in the Soviet Union in 1984. The game has a simple goal of destroying lines of block before it reaches the top. The line is made up of a square block. Tetrominoes is the shape of the 4 connected blocks that falls vertically down. The player will have to use the tetrominos to create lines that fill the box horizontally, this will clear the lines of blocks. The game continues, the lines of blocks that is not completely filled will drop down as many lines that were cleared. The game has levels of difficulties which rises as the game is being played.