It's fun idea. Level 1-4 was too easy, lever works just like on/off switch but since level 5 it got more interesting when you controling more doors with one lever and different levers intersect. It have potential for a really challenging puzzles. Too bad nothing more came from it because level 8 crashed.
I'm just surprised anyone has played my game this long after I made it! My goal for it was really just to get used to Unity and a sped-up workflow of creating a game. It was an exercise to see if I really did enjoy making games. It was my first :D. Maybe I'll make a sequel, who knows, with levers linked by a rope so not both can be turned on or off. Thanks for you input, you kinda made my day!