The user is able to shout so loud that they can blow away or break objects with their ferocious vocal cords which can cause vibrations. They may also be able to emit a roar strong enough to damage hearing, cause fear, or paralyzation. The force caused by the roar may even cancel out opposing attacks. It can also be used to alert someone of the user's location.
In his Berserker form, Asura (Asura's Wrath) possesses a roar so powerful that he can knock entire spaceships out of orbit.
Ormagöden (Brütal Legend) possesses a roar so powerful and magnificent, his scream at the moment of his death travels through the Brütal Land to this day.
Cornell (Castlevania) howls so loud that his enemies are stunned and pained.
Volga (Hyrule Warriors) lets out a mighty roar that releases waves of energy around him.
Lillipup (Pokémon) using Roar to scare the opponent into retreating.
Dialga (Pokémon) using Roar of Time to roar so powerfully that it distorts the flow of time.
Nemesis-T Type's (Resident Evil 3 2020) roar is so powerful, fierce, and load that he can deafen and stun his enemies/victims, giving him enough of an opening to attack them once they are vulnerable, and can also use it to intimidate them.
Chopper (Skylanders) can roar powerfully, causing damage.
Murray (Sly Cooper) is capable of unleashing a Guttural Roar to scare enemies away.
Knuckles the Echidna (Sonic the Hedgehog) lets out a mighty roar at Storm, stunning him.
Bowser (Super Mario) lets out a mighty roar that sends Mario flying.
Tigrex (Monster Hunter Series) is capable of letting out powerful roars that will push hunters too close to it.