works really nicely as a prototype! congrats on getting your first submission in--no small feat. i think the core idea of a spinning shooting gallery type game is a really solid one, and one that you could expand upon to make something pretty unique. all your potential mechanics sound like solid pursuits! being able to control the frog up and down, and potentially having obstacles that would damage you would be my first suggestions, and a "goal" to move towards. what if you have to knock down all the targets in a certain amount of loops, while not getting hit more than 3 times? something like that. all the sprites look fantastic, definitely shows that you spent some time on cleaning them up and getting them just right. well done!