Phisically impossible, you can only rise up to a point equal or lower than the jump point.
this is potential energy converted to cinetic energy and than to potential energy again. if you want to get back in the initial state, at the end of the cycle the potential energy stays the same and the cinetic energy is zero. because cinetic + potential energy is a constant. So you cannot draw energy while mantaining a infinite loop.
Actually the infinite loop could not be mantained regardless because of friction and air resistance.
Perpetual motion machine cannot exist, also poor monkeys...