Least Effective Learning Game

The game I taught was the least learning topic has to be Race to Justice. The game really didn't explore any educational things or stuff like that because all you had to do was to dodge barrels. What I learn from the game was that you have to be patient and wait for the barrels to pass by. The game Race to Justice was in the racing genre. I thought that was not a very good genre because what can racing teach you, nothing only that you need to buy things to improve your car. The game has low graphics and I really didn't understand what the game teaches you. It wasn't really clear what I had to do I only knew that I have to make it to a brick wall or something. To make the game better I would put some adding problems on the barrels and if you hit the barrel you would have to complete the problem. I want to learn how to move a character, how to put high graphics in the game, and how do I put color in the game.  
http://www.worldwideworkshop.org/programs/globaloria/civics-games-competition-winners#foxracers