Barney would win. Weu2019d all lose.All it would take is for Galactus to take one look at Barney for him to realize that eating Earth would probably give him a very bad case of indigestion. Barney would start singing and dancing and Galactusu2019s eyes would burst from their sockets in an attempt to save his brain.At that point Galactus would wisely flee, leaving behind his eyes which contain a large amount of the power cosmic. Barney would dance on over to the eyes, as he nears them his mere proximity to that level of power would cause him to grow. Sensing that power he would start eating the eyeballs. Growing incredibly larger with each bite.Eventually heu2019d be as big as Galactus, this would cause worldwide catastrophe as we realize that D00M is upon us. All our militaries would send everything we have against him, but heu2019d see them and start singing. Heu2019s so large now that the sound would create shock waves that would down anything in flight. His dancing would shake the earth and create earthquakes felt for hundreds of miles.The songs of happiness that he sings would be corrupted by the massive level of power and would create chaos. This chaos would spread like wildfire. Anyone who hears him would be driven insane. Unfortunately, this would probably be broadcast all over the world. So the madness would become global within a matter of hours.By this time Barney would be completely corrupted by the power coursing through him. Weu2019d have a 500 foot tall purple dinosaur happily prancing across the United States. Leaving a wake of death and destruction behind him the likes of which weu2019ve never seen. When he reaches the California coast he would use the power cosmic to give himself a powerful fire breath. Burning a pathway through the ocean.Such is the power that Barney wields that even the waves obey him. Instead of crashing back in to fill the void created by him, the water would leave a pathway for him. He would take this path straight to Hawaii. He would then take revenge on somewhere that dares be happier than he is. He would climb Kilauea and cause it to erupt. He would absorb the energy coming out of the volcano and then disperse it across all of Hawaii. Covering every bit of land in mounds of magma.Temporarily satisfied with this course of destruction Barney would relax amidst the death he had caused. What remains of the worldu2019s militaries would try to use this time for what they think is a sneak attack. Sending all their nuclear weapons to hit him at the same time. Unfortunately for them, Barney is now immune to any Earthbound weapons. And his senses are far more powerful than they ever were. Heu2019d sense them coming and use his incredible power to send all the missiles back to where they originated.The death and destruction this would cause is legendary. The Shiu2019ar empire would probably take notice and start getting nervous. Hoping that the purple behemoth is Earth-locked. That his power cosmic does not include the ability to travel through space. No one needs a more purple Galactus.Their fears quickly become realized. Barney learns how to absorb all the nuclear radiation that is now covering the Earth. He grows even bigger, quickly growing to 1,000 feet tall and positively glowing with power. The few remaining humans start cowering in fear all across the Earth as he begins to sing and dance. Every man, woman, and child, no matter how near or how far starts to feel their life force being forcibly drained from them. The screams are blood curdling, or they would be if there was anyone left alive to hear them.As the lives begin to blink out the glow surrounding Barney begins to expand. Soon the glow can be seen from space. It doesnu2019t take long before the glow covers the entire planet. For a moment the Earth is almost as bright as the Sun. And then itu2019s gone. Earth, once home to many superheroes, is no more. Not even a speck of dust remains.No, no more Earth, but the space where Earth used to be isnu2019t empty. Thereu2019s still Barney. Youu2019d barely be able to recognize him now. Heu2019s still purple, and still a dinosaur, but thereu2019s no happiness in his eyes now. No, now his eyes are empty of any human emotion. The only thing you can see in his eyes now is hunger. Barney hungers.Galactus feeds on the life energies of planets. Barney though, he feeds on happiness and joy. And it calls to him from across the Universe. Wherever there is happiness, Barney will come. Barney will eat your soul and those of everyone on your planet. You donu2019t have to be happy for him to do this, as long as there is happiness near you.For the sake of the universe, there must be no more parties. We must learn to live in filth and squalor or we will be destroyed. If youu2019re reading this on some distant planet. Please, take heed, take my warning. Do not fall prey to Barney, the Purple Dinosaur.