The first thing you see is a long row of breaking boxes, you go on the left side of the ground and jump on the first breaking box, then you jump from box to box until you reach the last one, then you must jump on the ground in front of you, once you're there, take the key and turn around, then jump on the breaking box again and follow the boxes again. Once you've reached the other side, you open the cage and take the YELLOW CRYSTAL.
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