Rosalina could appear, but it's still doubtful.
Mario Kart 7 has two Super Mario Galaxy characters, and right now, Mario Party 9 has one character from Super Mario Galaxy 2, which was Whittle. I think they're trying to have a lot more Super Mario Galaxy references. It's possible that Mario Party 9 could have another character from Super Mario Galaxy games.
Mario Kart 7 has two Super Mario Galaxy characters, and right now, Mario Party 9 has one character from Super Mario Galaxy 2, which was Whittle. I think they're trying to have a lot more Super Mario Galaxy references. It's possible that Mario Party 9 could have another character from Super Mario Galaxy games.