Tetris 9 cells is a tetris game built in HTML5. To score points, you must clear lines. To clear a line, every square in a row has to be filled. When every ten lines are cleared, the game enters a new level. After a level-up, the blocks fall slightly faster. There are 20 levels. The field dimension: 9 cells wide by 15 high. Control keys: left arrow - move left, right arrow - move right, down arrow for fast drop, up arrow - rotate, "P" or "Esc" - pause game.