Not sure if this is achievable by other means yet, but needed to keep the player from bunny-hopping their way up the sides of cliffs, so I made a quick "invisible wall" barrier if anyone else has a need for it. Works quite effectively at stopping the player dead in their tracks.
Just assign the "Invisible" behavior to the object, enable grid snapping and you're good to go! You can also scale them up to a much larger size to cover areas more quickly.
