It's the right globe that sits behind the lightning bolt target (-23) - pop rivet has come of the bracket.
I'll upload the pic when I'm back in Melbourne tomorrow. For now, I've uploaded a pic from IPDB for reference.
I spent around 90mins in this joint and was surprised to see young & old, playing these pinball machines - some serious swipes indeed.
Didn't GS visit here back in September 2010?