自己编的俄罗斯方块游戏，使用键盘上的方向键进行游戏：左键左移，右键右移，下键快速下落，上键改变形状。菜单项中帮助有按键说明。菜单中可以选择游戏难度，游戏分为困难、普通和容易三个默认级别。

-own addendum to the Russian box game, the use of keyboard keys for the game : Left-left, right-shifted to the right. Quick keys whereabouts on the key change shape. Help menu item shows a button. Menu can be difficult to choose the game, the game is difficult, the ordinary and easy three-level default.