>>5853271I just figured out how the Tyranosaurus legs transformation works because of that video.
1. The thighs are hollow and there's a sliding tab, you can see it on the front of the thigh. 2. The lower legs will slide into the thigh, and then you push the dinosaur feet down so that it presses against the back of the lower leg like on the suit model. 3. The pegs on the knees to combine with the Sabertooth and the Tricerotops are hidden behind the shin panels on the Tyranosaurus, so you will have to flip those down, extend the pegs out, then slide the legs into the thighs.
This thing is going to have some really creative transforming. Sorry for the shitty arrows, I'm on my phone.