I previously recorded such a video on my old channel ( https://www.youtube.com/watch?v=9NBDulvHYr8 ) and I thought I could update it with high definition (now in HD 1080p and not just 720p) as well as adding a few voice lines, new ways to kill them, requested portal use and.... a few elements from Portal 2.
Once again, it was recorded in Portal Prelude ( http://www.portalprelude.com/ ) since it is quite amusing to see so many people freak out on the minor details that are different from the original Postal.
