My only complaint was that I am so used to having the up arrow being the jump button that I got confused for a few seconds as to why I wasn't jumping, but that's no real issue. That's just me being dumb. :P
Very cute game, and its shortness is refreshing more than a shortcoming. So many games try to stretch themselves out far beyond their capabilities, and this is nice and short. It is very well done for the 48 hour time limit, a complete little capsule. Loved it.