Oh, I just realized that I never answered your question... I don't really play this type of game much, so I never realized that "focus follows mouse" wouldn't be the (2D) movement/aim style. Using Kenney's top-down shooter people, just reinforced that idea, their head points where their gun is pointing . . . so "forward == aim" (the one I'm using for a two-handed machine gun is called, "Reload" so it really isn't supposed to be shooting.)