Push works well. Something like this inside the Sketchy Physics UI for the object.
xpos=0.0
ypos=0.0
xturn=150.0
yturn=150.0
ontick{
if frame%60 == 0
if xpos < xturn || ypos > yturn
push([1,0,0])
puts ("pushx")
else
push([0,2,0])
puts ("pushy")
end
xpos=position().x
ypos=position().y
puts(ypos)
end
}
This will push towards the x direction for awhile then push towards the y and then back to the x. You could also change the logic so the push direction changed based on touching the bumpers using the ontouch event.
downtrack.skp