Out of Bounds

Out of Bounds is defined as an area in the game that does not have a floor below it. While the game does anything it can to keep Mario out, he can still enter using a ledge grab, a chuckya throw, ect. Once out of bounds, Mario will immediately die and lose his hat temporarely. The out of bounds death fadeout still has Mario controllable, so it can be used to grab stars and skip the dance animation and the level exit animation.