This is a rough alpha for "They're Coming to Get You - You'd Better Run!" Press WASD to move around, and space to jump. Obstacles, points, health, and all the rest are forthcoming.
I probably got most of the ideas for the screen-moving mechanics off of Flappy Bird, but I honestly built it from the ground up off the top of my head. Trying to make it better every time I make a pass at it. :) Actually, I'm probably never going to finish it. Now I use it for demonstration purposes, to show how even "basic" features in a game can actually take a lot of work, and that you can have lots of functionality for a work-in-progress.