Super death jump
The super death jump is a type of superjump that occurs in Stamina Mode. If a character's HP is reduced to 0 while receiving momentum from a special move (such as various up specials), the character will not stop, and instead continue flying along their current trajectory. Usually, this results in being flung rather high (as most relevant moves throw the user upwards). The timing required is typically very precise - a simple way of accomplishing the jump is to use the flower effect, then using the relevant special move at the correct time.
Characters capable of performing the super death jump
The following is a demonstration video of the super death jump.