I have recently acquired Amazon Unicron, and was wondering if his head could turn. I would prefer to not break this $60 [awesome] hunk of plastic.
It should do. It may be a little stiff, though. Tony B's gallery certainly shows the head rotated: Amazon-Unicron-032.jpg - Unicron (Amazon Exclusive) - TFW2005.COM
Yeap, the joint is definitely super stuff at first. Both my Armada and Takara 210 versions of the mold took a little extra force to turn the head the first time.