Thank you so much!! I'm glad to see someone reaching the demo's boss, I was a bit afraid there could be a bug or maybe it would be too boring. And I've never heard of this game you mentioned, it looks a great reference to me, thanks!
About the camera thing, it should already do that if I understood it right... maybe it's a mouse problem? Did you play with mouse or keyboard? It moves the screen when the cursor touches the screen borders. If it's not that I'd really appreciate a video (if you can, of course).
Again thank you for the feedback, it helps me a lot!!