I was a little confused by the use of buttons (instead of panels) for help text, but I eventually determined that it was a keyboard game.
I then did not realize until after I reached the end that you could use the mouse to rotate the camera. That probably would’ve helped.
I liked the sound effects and music and lighting (though it would’ve been nice if the song didn’t restart when the level did; one way to get around that is to have an autoload singleton scene that controls the music), though I don’t know that I would’ve known what to do had I not seen the TV show.