I was prepared for a whole game with new levels and mechanics, but I this was even better. Once I came to the realization of what it was about, I read the description and smiled. This was really creative and simple, good job!
It is just a simple Illusion. At the End of an Level you will be seemingless teleported to the beginning of it again, only the Text-Field changes it's number. So there is really no end to it.