⇜ Sky Run ⇝ ~Use the arrow keys to move and jump. ~Avoid yellow obstacles, and avoid/jump over brown obstacles. ~Don't slip off the edge of the path. ~Hover your mouse at the top of the screen to change the difficulty. 0 is easy, 1 is normal, and 2 is hard. Click the green flag to restart with the updated difficulty. ~Survive for as long as you can, and post your high-score in the comments!
Credit to @getbent for the code and art. It may be a little buggy, so please report any problems you find. Enjoy!