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:

OK, I’ll keep it in. This update makes playing in 2-player mode go a lot faster, plus the transition from 2-player to 1-player (when a player gets a game over) is a lot smoother. I also fixed a bug pertaining to the 2-player mode

http://www.atariage.com/forums/topic/153710-2600tris/page__st__50