-- it's time to get the lift working again. I'm not sure what's supposed to be going on here, but the piece you need is in the judges' box, the little electronic thing you couldn't pick up before.
This is one of those chain reaction puzzles; click on one of the buttons, and you'll see how it works.
When you click on a button, every button connected with it gets flipped. Every flip charges the battery a little. The goal is to charge battery all the way in just five flips. Read to the end of this hint for one way to do this.
Each click flips the button you push, plus every button that one feeds into, plus all the buttons they feed onto, and so on.
But the way the buttons are set, they only feed into two buttons. In order to get a really good chain reaction going, the button you push has to feed into buttons that feed into buttons that feed into buttons.
You have five clicks to recharge the battery completely, but you can do it with three clicks if you hit the right ones. But if you get it done with five, that's just fine.
Any way you do it is fine, but here's how I did it: