Original Description:
During a Macromedia Director lecture, I wrote a Tetris clone using Director. It's not particularly spectacular, but it works quite well. The game can be started and stopped with the Start and Stop buttons. The Pause button pauses the game, you can let it continue with Start. The control runs via the number block (just try it out), NumLock must be active.
The Shockwave plugin is required to play. The browser toolbars should be hidden in order to have an overview of the entire playing field.