Get this hard to find discontinued original Transformers Energon series, Optimus Prime with PowerLinx to combine with Omega Supreme to form Optimus Supreme.  Items comes from a smoke free and pet free home in the United States, most of the set is complete, but some accessories are missing including original white gun, but includes replacement white gun.  Some door pieces missing on backside of Omega Supreme.  Actual head piece for the Omega Supreme missing, but Optimus Prime Head replaces it as shown in pictures to combine to form Optimus Supreme and Prime Force adds additional weaponry and can combine to form the larger Optimus Prime or the Optimus Supreme.