Netto's Daily Challenge: Portal - Enter only the Orange Portal
Today's challenge is to complete the original game while only going into the Orange Portal. This challenge may seem easy at first, but keep in mind that there are sections of the game where you have to launch yourself across the room. This sometimes involves falling back into the portal you just came out of, and that will be something you cannot do this time around. You will have to act fast, place an Orange Portal where the Blue Portal is, and quickly replace the Blue Portal in its new location. This challenge is more about speed than anything else, and it can prove to be a challenge.
Now this challenge can be done on any version of the game, but I will say that PC users will have the advantage here. If you want to get some sort of challenge out of this one, I recommend playing on either the 360 or PS3, or play the PC version with a much lower sensitivity setting for your mouse.
Well, good luck everyone!