Oh I would LOVE to have a Koala in my yard.
I think they are just the CUTEST things. Wallabies, and Kangaroos are cute too. I don't know what a Bandicoot is? We have a bird here in the U.S. called a Coot.
We get lots of deer. Our whole back yard is lined with woods. We feed them in the winter time, so they come here quite a bit. We enjoy watching them.