Yes, it is animatronics. I believe this person driving inside of dinosaurs or use remote control. I have no idea lol. It was neat that dinosaurs walking itsellf but I know they have rock thing under it so they won't fall down.
Yes, the small dinosaurs like rapors or baby t-rex have persons leg attached to the dinosaurs legs.
I kind wish t-rex eat that guy in background. It will make show more sweet.