[Shin Densetsu]

If you have a stuck wrist joint, what I did with my comic pack Wolverine was pull out a hair drier and heat the forearm for a bit to get the plastic soft. Once it was soft enough, I pulled out the hand. I got an exacto knife and started scraping a layer of plastic out of the inner forearm. Then I reheated the forearm, and put the hand back in. Then I shoved the figure in the freezer for a few minutes.

Minutes later I pulled it out and voila, fixed figure with no stuck wrist!