How do you do this?

Hey, I found a thing in this game.In this there is something called re-play when you click it a npc comes out and does the stage and tell how to do it., and you cannot move cam its like video and npc will move cam.

How do we do this? I tried making this but turns out we can move the camera and its not like video and no animations to, and it says pathfinding service cannot find path when I used it on a simple wraparound stage as you know it, how do I make path finding service do obbies good or like make a video kinda thingy?

tween a rig then animate it maybe

but its not just 1, its a tutorial for all difficult stages, and its not like tween the camera is moving to like a real video