Have you played the Valve Portal game ? It was the most different and probably the best after HalfLife2 . After completing Valve Portal, I to recorded my gameplay videos. It was difficult to determine how to play when recording. A level can be played in more than one ways. I tried to be a bit slow on the game and give the viewer a chance to enjoy the videos. Here are mode videos others are yet to be uploaded. And i also think some needs re record, as some of the gameplay looks clumsy. I will post the game play 5 videos a page. Below menu will be updated with new posted videos.
Yet another set of 5 videos. This post contains TestChamber 10 to 14
See the gameplay videos of TestChamber 10 to 14