Improves on the first Mario Galaxy in navigation through levels and level design. I ended up completing the game and getting all 242 stars and unlike in Galaxy 1 and Sunshine I actually enjoyed the experience of completing it. The green stars were an enjoyable way to go back through the game again similar to 100 coin stars in Mario 64. The reward for getting all the green stars is my favorite type of completion reward, new, more difficult gameplay. The first star in the final level wasn't too difficult but the final star took me longer than any other star throughout the game. It was satisfying to master the level to get through the entirety of it for the star in the same way it's satisfying to get good at levels in the original Super Mario Brothers.