Tetris 2

Tetris 2 is a new edition to the family of puzzle games that began with the megahit, Tetris. Tetris 2 consists of red, green, and yellow blocks. In the original Tetris game, the object was to erase the blocks by arranging them horizontally across the screen. However, in Tetris 2, your goal is to arrange three blocks of the same color vertically or horizontally. This will cause the set of three blocks to disappear. While maintaining the "simple, but fun" tradition that was started with the original Tetris, Tetris 2 moves ahead as a game that is even more challenging and more fun to play.

--From the NES Tetris 2 instruction manual.

Overview:
     Raindrops keep falling on my head, or in this case, block groups. The objective of the game is simple; erase blocks by arranging three blocks of the same color either horizontally or vertically, which will cause the three aligned blocks to disappear. Since you cannot start a nuclear war by playing Tetris2, simply begin the game and learn as you go. There are game options which you might explore at your leisure. Tetris was a MAJOR hit when it debuted and fans of it should be happy to have another challenge.