72 hour challenge?
If that means that the game was made in three days or less then color me impressed by the fact that it's actually functional. It's difficult the first few times you try it, but it's not broken in any way (at least none that I found). The jumping is a little awkward at first, but I got accustomed to it pretty quick and other players should adjust pretty fast as well (I'd expect). It's not bad and, in fact, pretty well done considering the time limit.