Here is my take on a movie version of Unicron. He doesn't eat planets, but absorbs active planets' energy and then destroys it. He does so by first landing on the planet free fall style and then he will begin to dig in the crater left by his impact. When he reaches molten rock he lets out his tentacle things and absorbs the energy until the planet is frozen.
He digs using like a mining laser from his chest while also just plowing at the ground with his arms. I also thought it would be kinda cool if there were a bunch of "devastators" using their vortex thing to clear out debris while he's digging but idk.
The blue things are energon storage or something. I'll probably add a back view an alternate mode and an ACTION view soon. ANYWAYS here it is... I hope you like it.
EDIT: I think legs don't make any sense on something this big...floating in space...
UPDATE:
Before: in case you want to see it.
Mini optimus prime in the blue thing >_>
