so you've collected 120 stars but you're unable to see the green star mission screen? it should say something like "green star mission, here we go!" or maybe "green star mission, bring it on!" I forget what it says exactly. If this isn't noticeable on your screen... I have no idea what the problem could be. Did you defeat Bowser twice in the world 6 castle?
No, he's not saying anything about his own game file. He's saying that he wants to find a save that someone else has uploaded, with only the first 120 stars completed, so that his kids can just do the green star missions.
"Why is it so hard? ... Why can't you just take me? ... I don't have much to go... before... I fade completely..." - Kelly Clarkson
Ooooh, I see. Glad you found what you're looking for unlike Bono from U2 who still hasn't found what he's looking for (sorry that's a dumb joke, hehe). Hope the twins are able to provide twice as much huggable affection for you. :)