I thought the music was awful and often off-key.. until I realized that its me jumping that's making the "off-key" sounds :D The background music is nice overall, and it would be nice if the jumping would play an appropriate note for that section of the song.. but that's a very advanced thing I do not expect in a game jam.
Graphics are very nice, the mechanics are good and challenging. Does it match the theme? Not so much, but you made a pun out of it, so there's some points for that.
Well done.