Hi, Zakaria,
The way the demo was before, the thing to do was walking into the different rooms and different animations would happen. I'm sorry you were confused. I've updated the demo, though, so that there's something to do and scenery changes and stuff. If you do decide to play the updated demo, you don't need to make a video. I just wanted to let you know I've updated things, if you want to play the updated version.