A: Make the game harder by making it where you have to start the development process all over until you get a 7,8,9,or 10 on the game you made.
^Send the pre-release version to secret reviewer after game finished , then the secret reviewer will tell if your game have something wrong/give you secret rating
you will receive option to further improve your game if the rating is bad (take time at least the same as 1 development stages)
Then the rating system would need to be tweaked in certain ways.