Best Game, Ever Options

[Seans]

What is the best game ever in your opinion(s)?
My personal favourite game at the moment would have to be C&C Generals Zero Hour - a RTS game.
However, ever since I started to play Golden Sun The Lost Age for the third time - this time I actually got through Air's Rock and intend to finish the game XD - it's earned the top place for the best GBA game.
Anyways, back to the question. :)

[Dr Strum]

It's immutable: no blocks can be added without changing the game's base formula, so, while you can play the game in different ways as shown by Tetris DS, there is no way to change the core play of dropping them and clearing lines.
It's expandable: while it can be changed, it can be added onto. Many things have been added over the years: holding blocks, competitive multiplayer, the various modes you see in Tetris DS, etc.
It's simple: I doubt you can find a person who doesn't know how to play Tetris, and if you can, I doubt they would take more than ten seconds to learn. Roate, move, drop. Rotate, move, drop. Rotate, move, drop, line clear. It's easy to learn, and anyone can rack up billions of points.
It doesn't get old: It's HIGHLY unlikely that playing through any game of tetris will be the same experience as a previous time. Partially because of the random choice of blocks, a little bit because of your own screw-ups or difference in decision. You will always be playing a different game (or round, if you will) of tetris.