The "FORWARD" key will send the maze runner straight ahead or down to the maze if at first node. If the way is blocked there should be "bzzzt" noise and the maze runner stays still.
The arrow keys will rotate the maze runner either clockwise or counter-clockwise.
The "BACKTRACK" key take you back to the last place you were at. It doesn't make the maze runner go in the direction behind you, necessarily. If you continue hitting the "BACKTRACK" you will end up at the start of the maze.
Go back to Selenitic Age -- Inside building.