Turn your scrolling into an Olympic sport. Race against the clock in this 100 meter (328 feet) scrolling game. But beware, it's not easy. You're probably going to give up way before you reach the finish. Oh, and using auto scroll won't work. You have to do it all by yourself.
I gave up after 17 meters (55.7 feet) because I got tired. And to be honest, a little bored.