Classical Tetris is designed for Tetris beginners and experts and even advanced experts. They alike would find many features that would increase their enjoyment of Tetris as well as improve their skill with the game. You will play the classical Tetris with MIDI, WAV or MP3 background music that you prefer. And you may change the sytle of the unit tetris block. Also the game is skinable. Support game load and save and pause or restart during your play. Game Level and keyboard control settings are changable at any time. You can shut the sound or music if you want the silence. A high score list is included. A special function of the game is to press F12 to cheat your boss by hiding the game, which is very effective. When your boss is away, you may resume to play at the right point.