How about, quarter pipes, half pipes, hips, step ups, step overs, down rails, up rails, kinked rails, c and s rails, trap rails, a frame rails, boxes.
Also how about a longer course maybe drag and drop elements.  How about a save your park feature.  Also official off axis rotations and official rail acknowledgment, like 90 on and off, 270 on and off, lip slide, disaster, etc.