Hex Editing NSMBU Version 1.0

Open the versions.bin in a hex editor (I prefer HxD)
Make a backup incase you do something wrong
Press Ctrl+F to search (I don't know the alternative on Mac, just press Search -> Find in the top menu)
Click Hex-values and type in "0005000010101D00" then click find.
To the right of that you should see some Zeros and then 2 sets of FF. After that, you will see 4 sets of numbers in the row. Set all those numbers to zero, and then save the file.
Make sure you do not have an internet connection when you boot up the game, and click start when it prompts you to.