This is really cool, it could probably be extended into a full game. So much stuff to like here, the intro (both of them) the looping gimmick, the puzzles! Great job!
As for some feedback, I almost got soft locked on the two elevators level, the box can fall though the sides of the moving platform and it's hard to kick it into the button. Oh and the music did not seem to loop. Those are just nitpicks that does not really matter for a game jam, so don't worry, you've made a really cool game!