Roll cancel cap return jump
A roll cancel cappy return jump is used in certain places for height, speed, and distance. Because of how hard it is to perform it, you can eventually practice this trick until it becomes consistent easily.
Execution
In order to perform a roll cancel cappy return jump you need to either spinpound or start rolling anywhere. If anything is near Mario to his left or right
you may want to get a little close to it to then roll cancel, keep the control stick forward in some kind of way and get a cappy return jump. These are useful in areas to gain speed, form a triple jump sequence, and gain some height.