Well, I saw that a lot of people wanted to make games where you run from an advancing wall of doom, so I decided to make a game where you are an advancing wall of doom.
My Wall of Doom is busy conquering the planet, and nomming on all the tasty people and cities that he can find along the way. Controllable gameplay will consist solely of using his nose-beam (which shoots lasers, not mucus) to blow up people, tanks, planes, and buildings. He will move forwards inexorably, and the camera will track him. Whenever he comes up to piles of debris or whatnot, he will scoop it up in his giant mouth, and make loud “OM NOM NOM” noises. The more stuff you eat, the more money you get to upgrade his nose laser, and to heal him. If I have time, you might also be able to get a mortar on his head, or smaller automated face-lasers. But likely I won’t have time.