The game is excellent. Graphics, Music, Game play. Some unique platformer related situations never seen before
Very addictive and rewarding.
It takes from 12 to 15 hours to beat the main game (60 stars and fly to Bowser's place at the center of the Universe) and like 12 to 15 another hours to get the remaining 60 stars. So it is like a 25 to 30 hour game to get everything and then you can play all over again but with Luigi