I pressed the switch button by error while trying to figure out how to use the shield, and after the animation the enemy hit me and I got frozen in place.
This has happened twice so far, so it might be usual.
Also, when I loaded a check point part of the textures of the robot became transparent for some reason:
Finally, if you carry the girl with the robot to the room at the start you'll notice that a shadow appears at the ceiling when under the door. I suppose this might happen every time you are near any ceiling, so it's worth checking it out.
Well, I hope I could be of any help. Keep up with it