From beginning to end, it's hard to find something not to like about Portal. Everything from the gameplay to the presentation are top-notch.

Skilled players will portal their way through the nineteen levels in just a few hours, but this little puzzle game provides plenty of entertainment and makes a great addition to The Orange Box.

From beginning to end, it's hard to find something not to like about Portal. Everything from the gameplay to the presentation are top-notch. Skilled players will portal their way through the nineteen levels in just a few hours, but this little puzzle game provides plenty of entertainment and makes a great addition to The Orange Box.