This depends on the type of beta: open or closed.
An open beta is open to anyone. Most likely you can simply visit the website of the game or the game company and download the game to try it.
A closed beta, however, is by invite only, or sometimes limited in total number of people. For this you may have to already know the game publisher (signed up for an account on their forum, subscribed to a newsletter, purchased games from them before, etc) to receive an invite, there may be contests to get an invite, or if there is a limited number of downloads, simply download the game quickly before the beta is "full" (no more people allowed).
no. there is not any beta games on club penguin.
The game was released on January 18 2011 and the Beta are for games in developement
Usually all Xbox 360 games go through beta testing. In order to beta test a game, the game will usually send out invites or have contests so players can get a beta invite and test the game before the game comes out to the general public.
The beta has not been announced yet. Valve games generally have beta periods though.
you can't they are closed
Beta is the pre release game for testing and does not have a charge but expires with the release of the game
about 25 i think
You get credits by finishing games, winning games, and getting commenadtions.
You must either be part of the team within the company who makes the game (so you can't test more than one company's games) or join the Public Beta for games. There is no job to test them all.
No. The full version of Minecraft will come out after Beta 1.9. Most games have their alpha stages then their beta stages and then the full version comes out.
its easy you just have to win hip of challenges
The only way you can do that is to look for new MMO's that are in BETA, after BETA is closed, you can play it. Usually, some BETAs require you to reach a certain level or something to keep you character in the main game.