How do I operate the Mazerunner vehicle?

The controls themselves are pretty simple.  Press "forward" to move forward,
use the left and right arrows to rotate the craft, and press "backtrack" to
return to your previous location if you get stuck.

Once you're underground (after pressing forward once), you can't go in
directions blocked off by a tower with a red dot on top.

Remember -- sounds are everything here.  Pay attention to them.

You'll hear a sound every time you enter a new location.  You can click on
the speaker to hear the current sound again if you've forgotten it.