Revision as of 07:53, 29 June 2012 by Marcowong1011(talk | contribs)(Created page with "{{DISPLAYTITLE:传送门测验室 09}} {{stub}} {{Schinese grammar error}} <center>{{Quotation|'''GLaDOS'''|丰富学习中心很抱歉通知您，下一个测试不可能...")
It is possible to stand on the button and shoot a portal halfway through the door opening. You can then jump through the portal in front of the door, and jump back out at the other end.
