Well, I didn't do the MO thing, but I did do something in AO. Does everyknow know that secret in the Free Fire Zone where you have to go through the way with mines, not the bat way? Here's a map: http://www.vgmaps.com/Atlas/PSX/Oddworld-Abe'sOddysee-RuptureFarms-Free-FireZone.png
it's where you save Mudokons 34, 35, 36, and 37. Anyway, I had no idea I had to go back and get some rocks. Instead, when all of the sligs were dead, I somehow got all the Mudokons saved without them touching mines. Sounds confusing, and I'm just saying...heh...
BTW I saved every Mud in AO, and when I went to see my prize (the Shrink cutscene), the cutscene wasn't playable and my game kinda froze...so Youtube was the only answer!