CoreOnline.com

Coreonline.com offers you the chance to play several Square Enix games for free! Totally Free!!
You can play Hitman: Sniper Challenge, Tomb Raider Underworld, Mini Ninjas, and other, in HD for free (I am not tired of repeating it).

The only "catch" is that you have only 20 minutes of free play and then, if you want to keep playing you'll have to pay. You also have to have a great computer, because, mine for example, is like shit and I can't even load the Hitman game hahaha. Try it yourself, nothing to lose, right?

http://beta.coreonline.com/

Toon Crisis and the World's Biggest Pacman

TWO COMPLETELY FREE GAMES ONLINE! They are both pretty cool ^_^

Here's this mini-game for you to enjoy! Pretty original and fun =D

http://tooncrisis.com/

And here is the World's Biggest Pacman! Hahaha There are like a million different Pacman puzzles to solve. You have zillions of hours of pure classic entertainment!

http://worldsbiggestpacman.com/