Wreck-it Ralph has also been a massive influence in my game module, although it is not a game... it is a 3D animation exploring the world of games.
The world of Fix-It Felix Jr, where Ralph the main protagonist lives and works, has been designed with the 8-bit game mode in mind, where when in the game world it still retains the square format in design, even going down to the very fine details such as making the dust clouds square shaped.
The main environment for the film was Candy Kingdom for the Sugar Rush game. I find it amazing how well the environment concept artists have got to the finished idea of the environment, with often the concept art looking as if it is a screen shot from the actual film. I love the roundness of everything, with the smooth curved line work, differing to the squares and triangles of the other games.