Complete the indicated task to add the corresponding star to your 
saved game file.

Star 1: Defeat the final Boss of the main game.
Star 2: Collect all Star Coins from Worlds 1 through 8.
Star 3: Complete all levels and find all exits in Worlds 1 through 8.
Star 4: Collect all Star Coisn in Superstar Road.
Star 5: Catch Nabbit in Worlds 1 through 7.