it came in ind that to prevent them all from disconnecting at the same time they could be sitting on the bridge held by electromagnet and if it loses current entirely they fall into pit with something lethal :)

but yeah that's unnecessary complexity if you have a nobble girl willing to die for sake of her friends who just abandoned her LOL
that scene you describe here would look pretty cool.
I hope this would not even be that hard to draw as each picture needs just very small changes

Considering overall rules of this game the goal is to endure electric shock for as long as you can as each second brings you some cash but current is increasing slowly over time(and lamp start for glow brighter). Anyone can join (and this will make it easier to everyone) or leave. And at first it would not be any problem to disconnect yourself as current is low even for single person but if more girls get connected and then they start leaving it gets pretty deadly. yeah looks pretty reasonable game and lots of fun(for spectators :) maybe I should patent it LOL

Maybe that girl you mention see these girls suffering and rushes to help them :)
And you know, actually it is even possible to arrange electrodes in a way where disconnecting them turns out very lethal if disconnected even for a single person like if you put 2 electrodes on each breast (4 in total per person ) as long as they are all connected, current will fry breasts turning them into charcoal but overall you will not die.
but if you disconnect just one wire current will flow through entire body and heart and even something what was relatively small will become deadly. But that's another topic