Interesting, the kangaroo I've always had has been very tasty. It might be in the marinade, though!

Ostrich or emu?

I think emu (the Australian bird) is very game-y. It's still a novelty meat, though; while kangaroo is becoming a little more mainstream. (Just a little, as in, you can now buy kangaroo mince, although you have to get kanga steaks from the butcher; you can't just pick it up in the supermarket meat section.