Regarding the Sharkticons that are available off eBay; I bought two from a seller from China (both arrived sealed/MOC but with copious amounts of clear tape on the cards). They look identical to the original toy at first blush, but some of the tolerances of the joints (like the shark arms and mace-tail fitting into the back of the alt mode) are a bit loose. The tail doesn't fit as tightly on their backsides as the Gnaw I bought from a seller in the States (via Amazon). Meanwhile, the genuine figure seems to have tighter joints and generally better fit and finish (crisper, smoother paint especially the front upper teeth), at least IMHO. My guess is that these are either KO's, prototypes/factory rejects (their cards show high Intelligence and say Kickback on them rather than Gnaw), or they're "midnight specials" (figures made in the original factory but after hours, off the clock, and without official permission).