If you see the one hour video carefully you will understand that the vertical magnets on top bow just as ball comes close. Clear Electromagnets with a switching Phase device. And he never says its perpetual " Its an Art Sculpture ofcourse "
Anyway this looks like the driving force by design though current times do not need such complex connections
http://blog.modernmechanix.com/2009/05/12/perpetual-motion-machine-makes-novel-window-display/?Qwd=./ModernMechanix/7-1931/perpetual_window_display&Qif=perpetual_window_display_0.jpg&Qiv=thumbs&Qis=XL#qdig
A team from Lund University has studied Finsrud's machine with very sensitive equipment for telltale signs of electromagnetic activity. None such was found. If it is not a perpetuum mobile the reason is something different (if we exclude fraud such as mechanical winding of a spring when he initially cleans the track). For instance, Finsrud's machine may be a very efficient redistributor of the initially imparted energy.