MetaChat is an informal place for MeFites to touch base and post, discuss and
chatter about topics that may not belong on MetaFilter. Questions? Check the FAQ. Please note: This is important.
I got stuck on level eight, I think it was. The one where you've got to shoot a small corner of the ceiling and the wall next to you, or maybe the floor next to you, to get up onto a very high ... thing. Dunno what to do, going back to it later.
Level 6: I thought there was some special tool in the room, but I was wrong. You have to harness the power of gravity using just portals. Placement is pretty important.
Ah, nine! It's another gravity one, with a twist. Have you noticed that the portal gun will shoot wherever you point, no matter where the guy is walking/moving?