Ok, I agree with you, that I might have started of with a bad wording. I'm really sorry for this. Overall your game works very well, but I really got frustrated because of not having enough control over the player due to the short reaction time that was given to me. Some times I really had no way to avoid obstacles, because in addition they spawned in a bunch.
I completely understand that you made this game in a short period of time and that making games is slowed down by surprising bugs. I really like the music and sound and the option that you could turn them off. The controls feel nice. Thanks for the explanation that you made the game for mobile too, I somehow missed that. In that regard it actually makes sense to have the character run from top-to-down.
However, I would really much appreciate it if you are able to position the player at the top to provide the additional reaction time. This would make your game so much better 😉
Anyway, good luck for your future games.