One of the things that I have often wondered was why did the creators of Beast Wars necessarily feel that Optimus Prime needed a face under the face shield? It also appeared again in the Bayverse movies with Optimus Prime having a battle mask that opens and shuts. While I appreciate that some have a need to see humanoid faces behind such masks, as a kid growing up with G1, and subsequent properties, it never occurred to me, or was necessary for me to have a Bot have a humanoid face underneath. to me, Optimus Prime was a different robot, so his face was the masked face. No mouth necessary underneath, as the full face was made that way to begin with. Same too for Wheel Jack, and Shockwave, and Soundwave. I never felt that they were wearing masks, just that they were particular robots that were just built that way, showing somehow a design or "race" of bot or generation. So the Question is, do they necessarily need to have a humanoid face under the mask?