Here is the map Thad's only comes whit the collector's edition of Portal 2.

Don't download if u Don't Want it!!!

Where? I don't see it around here...

i don't know how to place an attachments?

So, let's see... The only addition to the collectors edition was the Rubik's cube, no extra maps, and the OP isn't uploading this via the download database; am I the only one who wants to call... 'suspicious' files? Also, if you couldn't figure out how to attach, why post this? This is, without a download, the most useless thread on the forums (well, in join first place with that GLaDOS bot thread).