Another thing I should mention, the rotations/translations on each tentacle base actor (the actor that's the first link or child of the head) have limits brute force written into the .cr2 so that a user won't have to worry about intersecting the head when pulling the tentacles about or utilizing IK. The limits are in effect regardless of Figure:Limits settings but have been set at values that still allow a pretty flexible range of motion in those actors. Also, those base actors have had their channels adjusted as you would with a figure's eyes in order to prevent deformation of the parent (head).

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