The upcoming issue of Guitar World, July 2010, has Mr. Scary as one of the transcriptions. Guitar World features tones using current BOSS pedals and they post the tones used. The article completely forgets to mention the Octave that is used but it does touch on the DS1, GE7 and DD7.
Once the next issue comes out you may have to go to the tone index to find the Mr. Scary settings. The current link just goes to the current issue.