Chuck's Reviews Transformers Studio Series 86 Sludge
 

I was initially excited when Dinobot Sludge was announced as the Brontosaurus was/is/who knows, my favorite Dinosaur. Sludge is unfortunately a floppy mess from the waist down that takes away from being a fantastic figure. I also have issues with the panels that form the top/back of Dinosaur mode pegging together well, but the loose hip and knee joints are the biggest issue. I strongly recommend waiting for a later release that hopefully fixes the loose joints.

http://www.youtube.com/watch?v=W4vlxOo0QNU