Hello and thanks for the comment.
First, the game is still in development, there will be more Features in the future.
The purpose of moving (scrolling) through the world is, that the player is able to search for baloons that float up randomly (Spawn times can be changed in the Options menu) and when he shoots them, the amount of ammo in your Shotgun goes from 7 to 20. And another purpose is, that the player can follow the ducks, that he maybe missed but wants to hit.
The suggestion with the score popup is good. I'll implement it in one of the next updated builds.
And the reloading thing. Yes, i'll think about that. Thanks ... Have a good one Dude 😸