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×Note that you only need to hit one orb to exit, but I guess you can make it harder on yourself by surrounding yourself with decoys first..
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×It only takes 3 decoys to reach the bottom for the keg, so in that logic, it should be easily doable.
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×I reused the upper one pointing south by pushing it down one and scooping it back up and placed the other decoys as needed. The keg placing decoy facing SE and the orbhitting decoy facing SW and the rest just place as needed.