It depends on which game it is?
No.
No PS3 game will work in a PS2.
How about you try it. Is it a PS3 game.
You need a license from Sony to make a PS3 game
No it is a PS2 game and they do not work on most PS3 game consoles.
no a PS2 can not play a PS3 game
No it is a PS2 game and will not work on a PS3 that is not backwards compatable
It depends on the game if an American save will work on an Australian PS3. Many will not work this way.
no
no it will not work
Yes
No. A PS3 copy of the game won't work on an Xbox - you will need to buy an Xbox copy of the game.