Primus is the light/good God-like entity that created the Cybertronian/Transformer race. He is also the counterpart to Unciron, much like what Optimus Prime and Megatron are to each other. These are likely well known facts to all Transformers fans So why is Primus never showing up to oppose his dark twin/brother? In so many series of Transformers, either Primus and Unicron never show up, or one of them shows up while the other is forever MIA. Most series that establish their existence only has Unicron showing up. It seems Primus has only made an appearance in Transformers Galaxy Force/Cybertron. Isn't it frustrating that Primus doesn't join the battle field, and only leaves the war to his creations, even though that was why he created them. It's like having only Megatron in a series while the Autobots doesn't have a Prime, especially Optimus Prime. Even if it is to portray a beneficial, kind Creator/God staying out of the affairs of his creations, he should really do something instead of just hoping for the best while his evil brother is working on destroying everything and he is the only one with the raw power to oppose him.