I actually have an idea for this: Mario 726: Basically is the Super Mario Galaxy series, including the 3DAS version. You do 242 Stars in SMG1 Wii, 242 Stars in SMG2 Wii and 242 Stars in SMG1-3DAS. I think this is a better category for Super Mario Galaxy Series but I just posted that here.

726 because 242 + 242 + 242 = 726 Stars