a single "Tetris" is scored when one uses an I-shaped block to clear 4 lines at once, and a back-to-back Tetris is when you score 2 Tetrises in a row (not directly consecutively, but just without clearing any lines in between the two)
No, but theres some sites with the tetris game in it and the site has virus, but is not fault of the Tetris game.
Tetris - Game Boy - happened in 1989.
Tetris
The first mobile phone game was Introduced in 1994. And The Game Was Tetris.
There is Tetris for X-Box and Game Boy DS.
Tetris is a tile-matchign puzzle video game originally designed and progrmamed by Alexey Pajitnov in the Soviet Union. There are some difference between online Tetris and the original Tetris game. However, the most different is that one is able to play the Tetris online.
Tetris games can be played free of charge on the internet at sites such as Free Tetris, Tetris Friends, and One Online Games. Tetris has been very popular over the years as a simple but very addictive game.
The Original Nintendo Game Boy was released in 1989 with Tetris.
The game Tetris is originally from Russia. There, Alexey Pajitnov made the first version of Tetris.
There was a Game & Watch game in development called Tetris Jr., but this game was never released. There is also a rare tetris game watch made by Nintendo / zeon in 1991, it's a fantastic wrist watch including the video game tetris ! but, unfortunately, I don't think you can fin this gem anymore.... maybe on eBay ?
Mr Pajitnov developed Tetris in 1985 at the Moscow Academy of Sciences' Computer Center. There is an interesting story about him and the game in the link below. http://www.prnewswire.co.uk/cgi/news/release?id=34683
A "KO" in Tetris is what happens when you get your opponent to lose the game (when he/she/CPU's pieces reach the top).