Bonus Features of Super Mario Galaxy 2

A couple of bonuses appear after certain events in the game. You get a letter from the staff after beating Bowser. It reads:
Dear Player,
Congratulations! You completed Super Mario Galaxy 2! We applaud your hard work. Thanks for playing! SUPER MARIO GALAXY 2 Staff
P.S. See you in Special World!
Play Time: 31:09:22
Included is a picture of Mario and Peach on the "In Full Bloom" planet with S.S. Mario in the background.
After getting all 242 Stars, you get a letter from the staff which reads:
Dear Player,
You deserve a congratulations of cosmic proportions for collecting all of the Stars and playing to the very end. Thank you! You are truly a master of galaxies!
SMG2 Staff
Included is a picture of all of the Stars you collected, all lined up in a row. They are either regular Power Stars or Comet Stars, yellow or green. I would have preferred something like a group picture on the deck of S.S. Mario.
On your completed file, there will be a special platinum crown with rubies. Instead of telling you what "World" you're working on, it will say "Master of Galaxies". It will also have a counter with all of the lives you lost.
I like this Master of Galaxies title a lot. It will be fun to use it.