Not many games made it to Australia. Locally, Leisure and Allied produced Galaxy and Meteor under license from Stern. They also had the Cosmic Princess as a "kit" - but it was built here. They were highly successful games.
Big Game was an excellent title, and this was the last of the machines that I remember that was commonly found on route.
I had never seen Flight 2000, Freefall, Split Second, Lightning, Viper, Iron Maiden or Catacomb on site. Ironically, these are VERY sought after titles thesedays. As a collector, I've been lucky enough to track down Flight 2000 and Freefall and I'd like to add Split Second and Iron Maiden to my Collection. I only know of One Split Second in Australia.
I think you were lucky to see a Catacomb on site, Pete, but I'd say that would be the only game after Big Game that I ever saw AFTER the route days were over.