Up and down acceleration (Slide)

Hello, does anyone have a viable blueprint solution for making the character slide when there is an angle change above or below 0?
I plan to test this in the 3rd person blueprint, and wish to add such a mechanic to a character, in order to give it downwards and upwards momentum not unlike a marble. Something along the lines of super monkey ball movement, without rotating the map.

any blueprint pictures would be greatly appreciated!
thanks in advance.