User blog comment:Matt Hadick/Ultimate Robot Battle Round 5/@comment-11521152-20130704024709/@comment-4738647-20130705002112


 * Looking up specs for [|G1 Optimus's alt-mode] and just a little common sense on how he transforms and he just about mathces the 18.5m tall RX-78-2.
 * Transformers have acknowledge mass-shifting technology, allowing tiny guns to turn inot giants and Optimus to hide his trailer so he could be any size really.