Ah of course. I though you would say stuff like wombats or dunnarts. They look very edible actually.

Not emu, but ostrich I've eaten many times. Extremely lean beef-like, good for stews and that's about, in my opinion.

Yeah, croc steak, ate that in China (of course), it's like anything else. Tough to chew. I'm not against it if they're using the animal for leather at least. 

Lizard I don't think I've ever eaten, but snakes like cobras at least are good (Taiwan, Malaysia). It was suprising because to be it was more like fish than "chicken". But it was cooked in a soup so...