I really enjoyed the mixing of the overhead sections with the jumping sections. While I only made it to my destinations because of luck, I started to get an idea of how the building was laid out by the time I ended up running out of energy. The visual style was very nice.
One bug I ran into was that sometimes the sprite for the character would not be facing the right way when I entered a jumping section. When it was facing the wrong way it would sometimes disappear when I jumped.