Portal 遊戲介紹:
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!
線上遊戲 Portal 是一款免費的小遊戲，可以在PC，Mac和移動電腦上玩。你可以閱讀下面的遊戲評論，裡面也許包含有關遊戲的說明，攻略和過關秘籍等信息。你可以在互聯網上玩Portal遊戲，也可以把遊戲下載後在個人電腦內玩。Portal小遊戲由Game Sheep 設計製作，在T45ol.com網站上共點擊87493次。