The difficult depends much on your screen size. it is much easier with a big screen and a high resolution, your pointer gets small compared to the pathes.
Not a game AND stolen. The video was already submitted by BenV as an april fool, pretending it was the new kongregate card game.
http://www.kongregate.com/games/BenV/kongaiLaunch
Really bad control... You can not tell when a jump will succeed, and the pits are very intolerant. And sometimes the control acts with a delay. I walk 2s forward even if I don't press a key, or I jump 1s after pressing space.