Hello,
Event number 8 defines the shape of the slope: random(480)+steepness*loopindex
Making steepness and 480 lower would make the terrain flatter.
I guess you could make a sub-event like the following to have the steepness change every five steps.
system: compare loopindex%5=0
--- set steepness to random(10,100)
At least that's the idea.
Controls at all don't make sense in this capx because it's non-interactive. I guess you'd put you control events above event 10 and in them change either ax,ay (acceleration) or vx,vy (velocity) instance variables of the skier.