Quoted from jayhawkai:
is the ball slowly rolling over the trolls when it changes direction?
They set pretty flush on my MMr, but every once in awhile I see the ball change directions when it rolls over one of the 'lids' . . . the left one. They LOOK really good and smooth on the PF. Visitors don't see the outline of them and are shocked when they pop up. Unlike my Goldeneye where the ramp to the satellite is obvious and often changes the direction of the ball drastically.