Game description of Portal :
On the screen, various circles. You must click on one of them, it will carry out a rotation of a quarter of turn in the direction of the needles of a watch. If after that, the line of the circle touches the line of another circle, the other circle will be put moving, and so on. The goal: To make carry out with the circles the most sequences and rotations to fill the bar with energy in top of the screen. You have 3 tests per level and the re-initialized table between each test. The more one goes up in the levels, the more it is necessary to calculate his blow before clicking!
The online game Portal is a free game to play on PC, Mac or Laptop computers. You can read the game comments below on Portal, which may contain cheats and tricks, cheat codes, tips and full game solutions. You can play Portal for free on Internet, or download this game on your computer to play it off-line. Portal is a game created by Game Sheep, it has been played 92455 times on T45ol.com.