Tetris is the king of all puzzle games.

User Rating: 10 | Tetris NES
When you say Tetris, I think about the good ol' days when I used to play Tetris all day long. In my mind, there is no other game that can match Tetris. This game is so fun. The gameplay is really, basic. All you have to do is interlock the puzzle pieces and eventually, you win the level. Thats it!
I really liked the graphics. Its just your basic coloured blocks. There is not much sound or sound effects so I really can't talk about that. But otherwise, this game is terrific. I recommend this game to anyone who is a fan of the Tetris series or the puzzle genre in general.

P.S. The difficulty is not that hard at all. Anybody can finish a level.