<Left Arrow> - Moves the falling figure to the left.
<Right Arrow> - Moves the falling figure to the right.
<Up Arrow> or <Space> - Rotates the falling figure counter-clockwise.
<Shift> + <Up Arrow> or <Space> - Rotates the falling figure clockwise.
<Ctrl> + <Up Arrow> or <Space> - Rotates the falling figure randomly.
<Down Arrow> - Moves the falling figure all the way down.
N - Toggles preview of next figure.
P - Pauses or resumes the game.
S - Increases the falling speed (by one of ten steps).
