Dragon Ball Z: Battle of Gods
Beerus makes his first appearance in the movie, Dragon Ball Z: Battle of Gods, and is the main antagonist of the film. His job is to maintain balance in the 7th universe where Goku and the rest of the Z Fighters reside. His pursuit of the legend of the Super Saiyan God eventually culminates in the ultimate battle with Goku over the fate of Earth.
Dragon Ball Z: Resurrection 'F'
Beerus appears in the movie, Dragon Ball Z: Resurrection 'F', and is a supporting character, alongside his mentor Whis. Beerus awakens prematurely from his three year slumber to observe Whis training Goku and Vegeta on his planet. Afterward, Beerus arrives on Earth and while eating a strawberry ice cream sundae, he becomes a front-row observant to the battles between Goku, then Vegeta versus the recently resurrected Frieza. Beerus instructs everyone to stay near him should the Earth be destroyed. Frieza blows up the planet, but Beerus and members of the Z-Fighters are shielded by Whis, and with his temporal do-over, Earth is saved once more.
Beerus is a purple anthropomorphic cat with gold yellow eyes and large pointed ears. His design was inspired by a 14 year-old cat named Debo, a Cornish Rex, who currently lives with series creator, Akira Toriyama. Despite being very ill and the vet saying he didn’t have long to live, Debo somehow got better on his own, and the vet said he might be some kind of demon. Beerus is hairless and while overall defined in built, he is very thin and bony. He is comparable in height to Goku, being only slightly shorter, but his long ears make him appear taller. Beerus dons black, blue, and gold Egyptian-themed attire with the same white and orange diamond decorations as his attendant Whis.
At times well mannered and occasionally courteous, Beerus has exhibited a deadly short temper, easily angered if things don't go his way. He is shown to destroy planets for petty reasons such as losing in a game of hide and seek, or if deserts aren't shared with him. Though not necessarily evil (destruction is simply his duty, after all), he isn't above making threatening comments when annoyed. He is obsessed with food and other delicacies, with food being one of the reasons he has chosen to spare the earth.
Beerus is feared by many throughout the universe, including the Gods of Creation/Kais, Frieza, and even Shenron. He usually sleeps for many years and when he awakens he destroys. Since he does not act on orders received from the Supreme Kai's, he would destroy seemingly any world without a second thought. It's implied he also destroys more than what is needed since Toriyama said when the worlds balance begins to crumble, the 4 regular Kai's have to help out the Supreme Kais in creation as well. Once every 1,000 years, the Supreme Kais and Gods of Destruction go to each others realms and hold a coordination meeting. During one of these meetings, Beerus sealed away old Kai in the Z Sword after an argument took place among them.
Beerus at one time mentioned that he came to Earth before and rendered the Dinosaurs extinct since they did not like him. Some 39 years before the events of Battle of Gods, the Prophecy Fish foretold that a strong opponent would appear before him, which was the Super Saiyan God. Beerus recalls having a dream where he fought a Super Saiyan god and that's when he approached the Prophecy Fish about the situation. This sparks a visit to king Kai's place to meet Goku and see if he knew who the Super Saiyan God was. After defeating Goku in his super Saiyan 3 form and the other Z Fighters on Earth, Goku returns to summon Shenron and ask him about legend of Saiyan God. Once the ritual of making the Super Saiyan God was complete, Goku fought somewhat evenly with Beerus and later absorbs the godly transformation's powers into himself. Goku struggled to hold back Beerus energy sphere in space and after transforming into the Super Saiyan God again, Goku erases the energy ball from existence.
Powers & Abilities
Although Goku had gained the Super Saiyan God transformation, Beerus proved too much for him to handle in the end, forcing Goku to give up the battle. Beerus defeated Super Saiyan 3 Goku, an enraged Super Saiyan 2 Vegeta, Piccolo, Super Gotenks, Android 18, Tien and Mystic Gohan with relative ease. Such warriors had 5 years of training after the Buu Saga, but even this was not near enough to challenge Beerus' power. Goku himself feared that if he fused with Vegeta he wouldn't be able to overcome the God of Destruction.
Beerus power was further showcased in Dragon Ball Super, in which the battle between the Destroyer and Super Saiyan God Goku threatened to destroy the universe do to their collective output. Later, Whis compared Goku and Vegeta (who just begun training under Whis) to a small tree in comparison to Beerus, who was a castle. It isn't hard to believe more damage could have been done to the universe had Beerus truly held nothing back against the Saiyan. Even a mostly playful fight between Beerus and fellow God/Twin Brother Champa resulted in many planets and moons being destroyed, with both implying they are willing to destroy the universe to best the other before being incapacitated by their respective attendants.
Beerus is also a knowledgeable master martial artist, more so than even Goku and Vegeta, to the point where he defeated both and the combined might of the Z-Fighters with mere pressure points. He has made use of his combat skills and godly abilities in combat many times, even creating versatile combinations mid battle, such as creating clones of himself to attack Goku from all angles, infusing Goku's body with Ki to create an explosion like effect, and using advanced forms of Ki manipulation to catch and redirect enemy attacks as he did so against an alien warrior on another planet. Perhaps his best demonstration of power so far was containing and neutralizing an ultra dense Ki sphere created by the clashing of his and Goku's attacks, which was stated to be capable of destroying the universe if it exploded. Beerus appears to be more powerful than Sidra, a fellow God of Destruction, as he was able to dispose of Sidra's Energy of Destruction by simply blowing on it.