let's be fair here, if they were a way to get the scenes, it would already be posted; BUT as much as I'd like to help you on this, you'll have to do some research, as the others said.
Either way, there are most likely several people who have gotten all the scenes, like me. Unfortunately, I have not seen whether 20/20/20/20 mode has such a scene in it. This game is relatively hard and most people who play it would not want to share their progress.
Most scenes can be unlocked after night 6 by losing to each animatronic (except g freddy) once.
Honestly speaking, just play the game. It's easy to beat night 6 once you learn each mechanic.