This is a port of Federico Poloni's Bastet. Obviously, Bastard Tetris. I ported it to ActionScript 3 over the course of a few days.
Instructions are simple. Arrow keys left and right to move your tetronimo left and right. Up and Space to rotate your tetronimo. Down to move the tetronimo down. As I said, simple.
The catch, though, is that the game looks at your playing field and determines which piece you will probably want most and then .... denies it to you. Pressing R will restart the game. Score keeping is not implemented. If you see any text it is probably debug text.
It is still under construction, so there may be some issues. If you find any glaring problems, I can be reached at edit the email address.