Hi Tedward and welcome to DFL' 
I presume you live close to that place? What a shame, if nothing is done, one of the last Galaxian3 in US will follow the same fate than the others : Air Raid conversion... or even worst : fully scrapped! 
Hi everyone sorry for the late reply.
I don't live near Fun World actually, I live in the UK, but I have a friend who has been to it recently over in the US. A few YouTube comments on John's video back up my friend's info.
So now that the company that made Air Raid has gone bust- the most logical thing that's going to happen to this Galaxian3 is unfortunately, scrapped

it's either sat there unused for 3 years because Fun World can't be bothered to do anything with it, or they've tried repeatedly to fix it but to no avail. If it's the latter then it's only a matter of time before it goes!
I will message Fun World on Facebook and report back any info I get. Although I would love for this to go to the UK if it gets saved, if this is the last one in the US that hasn't been converted to Air Raid it deserves to stay there. If it does it's best for it to go to a better location- somewhere like Galloping Ghost or, more realistically, Funspot.