Unfortunately Turbografx-16 games aren't available in Australia as it was never released there, which is a shame because it did have some good games. There was a trick to download Turbografx games to the Wii in Australia (just by changing the country settings!

), but Nintendo have closed that hole now.
It was a rival to the Mega Drive and the SNES, and it did quite well in Japan (where it was called the PC-Engine), but not so well elsewhere. By the way, it is on Wikipedia. You probably spelt it wrong.