Have you combined something like music melody into the algorithm?
you can download the source code for free (Construct 3) on this page to make your own endless runner game :-)
https://www.construct.net/en/free-online-games/dawn-man-25668/play
The music is from Portsmouth Sinfonia where they played the tune for fun by swapping instruments between musicians: https://www.youtube.com/watch?v=pICA–V9stE