Genre: Action, Puzzle
Perspective: Side view
Visual: Fixed / flip-screen
Gameplay: Falling block puzzle
Interface: Direct control
Published by: Tengen Inc.
Developed by: Atari Games Corporation
The famous game from the scientist - Alexey Pajitnov. The version was unlicensed. For four weeks it was only sold, then Nintendo through the court banned the sale. We managed to sell 100,000 copies. And the game turned out better than the official one from Nintendo!
The rules, I think, is not worth explaining.