@Twistin'
We got the Spectrum Holobyte release of Tetris here in Australia, so I gather Infogrames only published the game in Europe.
What puzzles me is the difference in publication years. In HOL the Spectrum Holobyte game is listed as published in 1991., whereas my boxed copy says
(c) 1987 and the Infogrames release is (c) 1989 IIRC.
Did Spectrum Holobyte release two versions of Tetris: The Soviet Challenge four years apart?
Also, why didn't Mirrorsoft (instead of Infogrames) publish all the Spectrum Holobyte releases of Tetris in Europe? After all, Mirrorsoft and Spectrum Holobyte were both owned by Robert Maxwell at the time.
Bloody confusing!