After browsing the web for several hours trying to come up with the best online entertainment sites. it is clear that there is only a handful of them and the places which claim to have thousands only have a few dozens on each category. Today's online gaming sites have grown in popularity because unlike stand alone gaming consoles they can provide thousands of games for free instead of having to buy each game individually, which would quickly grow to thousands of dollars.
The best sources have two kinds of games, those based on Java platforms and those based on flash platforms, in order to get these games going all that is necessary is to have an updated browser, if not the only requirement is to download the indicated browser extension from a trusted web site such as Java. These games are also available for download so that they can be played even while they are off-line which results rather helpful for those who want to play for hours. There are several categories which can grab your attention, but among the many games available there are a few which are quite challenging despite their basic and childish appearance. One of these games is called "Puzzle Bobble" under the "classic" games category. As you can imagine this is somewhat of an interactive puzzle in which you have to match bubbles according to their colors to eliminate groups of bubbles with similar colors, it is sort of similar to Tetris where you have to match the shape to the one found at the base of the cubes, and just like Tetris if you run out of time and the pieces keep coming down the game is over. There are a few important things to remember in order to successfully advance to the many levels this game has, the first one is that the roof starts to collapse and get closer to your "bubble launcher" every approximately every 10 seconds so you want to keep shooting as fast and accurately as possible in order to match the colors and clean the cluttered bubbles the other one is "just like in Tetris" the next bubble and its color is displayed in the bubble launcher to help you figure out where you should aim the next one to clear some columns. After advancing 5 levels you will find it rather challenging and if you have a couple of hours you might advance to the seventh or ninth level where things start to get very complicated, so if you are a Tetris fan you are sure to love this game in particular. Asides from tricky bubbles there are many other categories which may appeal to your tastes such as action, war, battle, hunting, arcade, mature, simulation, TV show, strategy, pinball, role playing, racing and many others, if you have interest, clink here: Mobile Phone Games, Free Java Games for Mobile and Cell Phones
but keep in mind that you should keep track of your time because these games are so addictive you will find it easy to spend an hour or two on these sites.