in the extended prime vs. bonecrusher scene, at the very beginning when prime jumps, he seem to have a bit of a gut (his "belly" bounces! ) after seeing this for a couple hundred times, i finally understanded it! he is in mid-transformation! (i'm kinda slow!) and this "belly" fully transforms when he lands. youtube link so you see it http://www.youtube.com/watch?v=0kZHybANP4k and a paint image i made for "further" explanation. [/URL][/IMG] *EDIT* yes, i also think it's just him finishing his transformation, what am I? four?! duh! (jk)
Cool, but I think most folks realized that. He's barrelling along in vehicle mode and transforms, which is why he's moving so quickly and skidding on the concrete when he lands in bot mode. He's even gracious enough to avoid stomping on that car.
its like that image on the front of the empire magazine where prime is silhouetted and his still has the front of hte truck on his chest, incplete transfomation there too