Quote: "but wont it take much space if you build a whole game for one level?"
Yes, you could.... you easily can end up with zipped 200Mb x 6 = 1.2Gb, unzipped even more. Unfortunally by the way this has been set up, you cannot combine folders of all of the six games, unless you build a seperate .exe that points to the combined folder again (if you still follow what I do mean).
That is why I started this thread 5 days ago:
http://forum.thegamecreators.com/?m=forum_view&t=77632&b=21, crow34's idea has been done before by a number of people (even months ago), I also tried it myself, but in the end it's not really workable when doing larger games.
Unless you combine all the folders into one and place all of the exe's in one folder then it would work, but that is a lot of work. You would need to direct the 'loader' application to one folder instead of a number of folders.