This...
Really frustrated me. It's simple and fun at first, but for all you medal hunters, I bid you good luck. For once you get to world two, it'll make you so mad that you'll wanna throw your monitor off a building. I made it to 2/5 and gave up before my hair started to fall out. A quick tip, add some more things to do! run and jump, thats it. Maybe a weapon would be something to think about.