This may seem like an odd piece of information, but since two of the Destroid models are present on the backpack, I thought this little piece of information was worth noting.
When the Destroid model kits were released in 1982, the four Destroids were split between two model kit companies. Arii released the Spartan and Defender while Imai released the Missile Phalanx and the Attack Tomahawk. Of the two makers the Imai kits were more accurately designed, better proportioned and easier to build than the Arii kits.
After Imai’s demise, Bandai purchased the molds to all of the classic 1980’s Macross model kits and began reissuing the kits with a slight box art changes and with a 25th Anniversary sticker on the box. Today many of these kits are still available through vendors such as Hobby Link Japan.