Thank you very much for this feedback. It was my first time implementing a tutorial, and I wanted to have a go at making one, but what you say rings true, he could maybe pop up intermittently when the player is close to getting the right conditions. Also, as I mentioned before, time to balance the game was limited,which is regretful, and this of course does not help. As for the scrolling, I completely agree,some other players have since brought this up, for now you can choose the fullscreen mode and this eliminates the scrolling issue (for me at least?).
Thanks again for your in depth feedback.