No but Australian possum are pretty bad. Not as bad as that thing, they don't hurt you, but the noise they make when they jump on your roof and screech loudly in the middle of the night they can be pretty terrifying.
That's not a koala! Koalas do eat leaves but that is a Drop Bear. Drop Bears look just like Koalas but are carnivorous. They drop from teas onto unsuspecting animals and hikers LOL WELCOME TO AUSTRALIA
47 Times Australians Totally Nailed It On Tumblr In 2014