This isn't really a bug as much as it is a user error I suppose, but on v. 0.005, in the rising platforms puzzle room, I took the robot all the way back to the spot where they separated and had the girl climb all the way to the end. Once she got there, I realized that there was no way for the robot to get up there to meet her, because the door was shut. And there was no way for the girl to go back and fix it because the hole she jumped out of at the top of the tower was too high. A little gameplay glitch I thought you might want to know about.