I'm selling these epic rivals as a set, and Optimus is the first US version which was exclusive to Wal-Mart so they BOTH have die-cast parts. They both come with their boxes, and Megatron's has the inner plastic tray while Prime's does not, but they both have all of their instructions and inserts. They have only been used for display purposes, and both of their light-up features work perfectly. Prime has been transformed just once, but I never transformed Megatron at all. They both come with all of their accessories, including the energy weapons from the first episode that can attach to either of their hands. PM me your email and I'll send you plenty of pics! And I know I'm not very active here, but if you want to check my references my ebay name is 'zamunda' and I'm VERY active over at He-Man.org under the same handle I use here. Thanks very much!