With fewer than 100,000 copies known to exist, the Tengen release has since become a collector's item, due to its short time on the market.
[1] Andromeda Software executive Robert Stein approached Pajitnov with an offer to distribute Tetris worldwide, and secured the rights to license the title.
[3] With the rights secured, Atari Games produced an arcade version of Tetris,[4] and under their Tengen subsidiary began development to port the title to the Nintendo Entertainment System (NES) in June 1988.
Basil's Cathedral in Red Square, Moscow, and featuring at its base a falling stone concept that mirrored the gameplay.
In an interview, Ed Logg notes that the Tengen version of Tetris was built completely from scratch, using no source code or material from the original game.
After presenting the title at the Consumer Electronics Show in Las Vegas, Tengen president Randy Broweleit requested improvements in the game.