I was recently going through our storage and found several action figures from the late 80's to 90's as well as some older Star Wars figures. In the mix I found all four of the original Teenage Mutant Ninja Turtles figures (just the turtles) still in their packaging. I looked them up on e-bay and saw quite a range of prices for the 1988 TMNT. Apparently there are several different versions dealing with soft vs. hard plastic heads, etc. and some are rarer than others. How do you fugure out which versions you have? I was thinking of sellling them, but don't want to get taken by someone who really knows the difference. Can anyone steer me to some place I can get the info to identify which versions I have?