Tetris, Tetris, Tetris!

The Original Tetris for the NES.
Tetris Attack was the 2nd Tetris Game and featured Yoshi from the Mario Games.(For more info see my "A Tribute to Yoshi" Post.)
The Game Boy Version of Tetris was bundled with the GB. Note that being a B&W Game, you tell Tetrominoes apart from their Design.
Dr. Mario is Tetris' Sister(Or, in this case Brother) Game.
The Tetris 64 Game had 4 Versions: Tetris,Multiplayer Tetris, Bio Tetris and Giga Tetris.