Alright, so on NSMBW (New super mario bros wii) you can use the second course of the first world to get tons of 1-ups. Most players already know this. Its an easy (but time-consuming) cheat-free way to get lots of lives. What i have discovered is something called an easter egg: something put into the game by nintendo that few people know about. I have found that when you use the method i mentioned earlir to get 1-ups, after you reach the point where you have 99 lives, Mario stops wearing his hat during gameplay. So as long as you have 99 lives in NSMBW, mario's sprite will not being wearing his hat. When you lose a life his hat reappears. Thanks for reading and try this out for yourself!