suppermariobroth:

During the credits of Super Mario Galaxy 2, Mario can briefly be controlled as the scene changes between various environments from the game. If first-person view is activated during this segment, an oddly-shaped object is revealed to be obstructing Mario’s view. This is in fact Mario’s own hair, as seen from inside his own head. Due to the scene being relatively short, the development team has neglected to make Mario’s hair, which replaces his usual hat during the credits, disappear in first-person view.