So, I found a glitch in glitch? Okay, not necessarily a glitch, but maybe an exploit or a developer oversight.
I levitated my way up over the invisible wall... I thought that the sign with the UFO there meant that something awesome was hidden up high.
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Image link:
http://imageshack.us/photo/my-images/580/glitchglitch.jpg/
... embed looked fine in the preview.. oh well..