Wow. This had the potential to be so fantastic. I really would have liked to have played it more but the tight timing meant that not long after I climbed the stairs I always died. Especially given the interesting aesthetic why not have a baby mode where you can run around more or less at your own leisure? Think of it as a walking sim, with the jumping characteristics. I might even pay (99 cents) for that game, depending on how much content there was.
Of course your game, your vision, just a thought.