Who hasn't played a few hundred (thousand?) games of Tetris? This puzzle solving classic is ridiculously simple yet wicked addicting. Using the various pieces, you must get as many lines as you can while scoring points. If the stack of pieces reaches the top, then it's game over and there are no lives and no continues in this game. A "Tetris" is scored by eliminating four lines simultaneously. The only way to do this is use the "|" or line piece and have the stack setup just right. You will score BIG TIME points for a Tetris on higher levels but many folks also play this game to see how many lines they can get (I fall into this second category myself). The most lines I've ever personally achieved was 208. If you can get in the 170's though, I say it's a good day.

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Play more fun flash games:
Cubefield 2 Cubefield 2
See how far you can get by navigating your way through the ever dangerous cubefield. You score points for every second you survive!
Fantastic Contraption Fantastic Contraption
Build your very own contraption and see if you can somehow make it go so that it reaches the red goal zone. It will require some serious ingenuity on your part and it won't always be fantastic.
Ultimate Sonic Flash Ultimate Sonic Flash
Who will you choose? Sonic, Tails, Knuckles, and Cream are all at your disposal as you battle and dash your way through this excellent flash version of Sonic the Hedgehog.
Hexxagon Hexxagon
If you liked Othello, then you'll love Hexxagon. It's a strategy/puzzle game that takes place on a Hexagonal board. Capture your opponents hexxes by moving your own adjacent to them but be sure to protect yourself too.
Worlds Hardest Game Worlds Hardest Game
It's the Worlds Hardest Game ever!! Or is it?! Move your little red square as you make your way through a labrynth of difficult puzzles all while avoiding deadly blue balls. Wow that sounded bad.
Worlds Hardest Game 2 Worlds Hardest Game 2
Just when you thought a game couldn't possibly be harder than the Worlds Hardest Game, they come out with the Worlds Hardest Game 2. More complex stages await as you collect the yellow coins and avoid the blue balls.
Starball Starball
Starball is a great remake of the classic arcade game Breakout. Using your platform as a paddle and a special star ball, eliminate the grid of blocks above you while scoring points and gaining powerups.