Stopped my play at 47 Stars. I should be able to complete it over the weekend. Actually I can complete it already if not for the fact that I explored every single stages till I got all those stars. The game even make use of your Wii message board but am not going to spoil it for you guys. The Boo Mario section is a bit weak thou IMO. The main quest are still relatively easy but no worries for hardcore gamers, the EX stages and challenges will make you all happy. Also, like what Sp0rk had mentioned, the apple stage is nice, I really like the overfeel of it.