Here's an idea, have you tried emulation communities? Not just MAME but like deep web forums. Some folks hoard ROMs and boards from obscure games. Legal grey area tho, FYI.

In terms of technical advice, if you manage to get your hands on it, be ready for some repair work. Those old cabinets can be nightmares to restore. You'll want to replace capacitors and check the condition of the ROM chips right off the bat. As for finding it, might want to multicast your search - forums, social media, even reach out to arcade repair shops. Someone’s bound to have a lead.

Good luck finding that white whale, mate. Better off looking for unicorns. But hey, if you find it, I've got oceanfront property in Arizona to sell ya.

That sounds super familiar. Think my uncle had a bar with one in the corner. Next time I see him, I'll ask. Might have taken it home when the place closed!

I played something like that but wasn’t it called 'Hoppy Roo's Adventure'? Or am I mixing games up? 🤔

Are you sure about the name? I was an arcade rat through the 90s and don’t remember this. Could’ve been a really limited release, or maybe even a bootleg that flew under the radar?

This is a deep cut, even for this community. Doubt many cabinets made it outside of small Aussie arcades. If there's no ROM, means the encryption might've been too tough or just no one bothered to dump it. You check with any Australian collectors? Someone there’s gotta know something.

omg 'Kangaroo Jack's Great Hop' was the bomb! Haven't seen it in ages though. You tried reaching out on the KLOV forums? They often have leads on rare arcade machines that aren’t listed anywhere else. Good luck with the hunt.