Quoted from paulywalnuts23:Is that a Flash Gordon Donor System?
Yes, it is. More info here...
https://pinside.com/pinball/forum/topic/first-look-ghostbusters-custom
https://pinside.com/pinball/forum/topic/ghostbusters-custom-pinball-official-video
https://pinside.com/pinball/forum/topic/ghostbusters-custom-pinball-inside-look