That actually is a really good game. Would make a great 2 player coop.
Problem I see might be the misleading title; honestly when I hear "Dot Hunter" first thing I think of is Pacman.
One might think based on the title that it's a Pacman clone.
This game needs a THEME. Have that ball be a rubber one and maybe animated Springs on separate ends and call it Spring Ball or something. Maybe make it a fuzzy creature and put other spring-shaped creature at the opposite ends...