atari2600land has updated his single and two player simultaneous play variant of a very well known russian block game. The game was previously known as “Tetris”.

Release notes:

Here is the latest version. I tested the cycles count and all is well. I tried to make it so when you press the fire button longer, the longer it takes to flip the shape. This should help with the problem sandmountainslim described.

http://www.atariage.com/forums/topic/153710-2600tris/