Crazzy you don't know what legs are.... Super Mario Sunshine had legs in Japan and by now was only doing about 1k per week, Galaxy is still at 4-5k.
Galaxy has passed Sunshine in Japan and is still going strong, it will likely end up near 1.5 million
It has passed Sunshine in Europe/others by half a million already, and is still doing ok.
It is only half a million below Sunshine in America and is still doing 50k+ per week (except when the Wii supply fails)
Edit: ok at the same point Sunshine was at 3.5k per week but it was in the run up to Christmas