Hmm. That's interesting. Are you pressing the faded bird icon on the right? Clicking it spawns more paper.
Also, reloading the page should take you back to the main menu after the tutorial is finished. My bad for that. In the actual levels, you will be given an option to return to the main menu once the level is finished
Oh, okay then, it could be a bit more obvious.
Yeah, sorry about that!
