Hmm interacting is q on the keyboard that is how you switch from forward to back shooting in the space shooter game as well. As for saving you have to open the menu in game and select save game by pressing esc I will try to reproduce this error and see if I can figure out the cause and get rid of it. I'm assuming something was entered into the gameManager and wasn't changed back to its original values. All well I'll try to get to the bottom of this.
and here is My twitch channel did you stream your as well?