Portal teaser site opens

A teaser site for Valve's puzzle-based shooter Portal has been discovered, allowing visitors to take part in some form of questionnaire.

Portal is the new puzzle game from Valve which relies on portals to solve puzzles. The game is to be bundled with Half-Life 2: Episode 2, which won't be released until 2007, but a new teaser site has been discovered.

Once you point your browser in the direction of the website you'll be greeted with a command prompt. In order to get started you need to type in 'LOGIN', followed by a name, and then enter in 'PORTAL' as the password. You're now free to explore. If you've never used a command prompt before then you can type in 'HELP' to give you some tips. If you get really stuck you can post for help in the comments section below.

I'm not sure why but several of the questions refer to cake, making an already fun little site even more entertaining.