As an Assist Trophy
Being an Assist Trophy, Rathalos is summoned by flying down from the sky and begins to attack its summoner's opponents. Its attacks include firing fireballs, slashing with its talons, and stunning nearby enemies with a screeching roar.
As a Boss
The Rathalos uses the same attacks it does as an Assist Trophy, with the addition of flying to the background to shoot exploding fireballs. During the fight, certain items will appear, such as Deku Nuts and Pitfalls. The Rathalos is vulnerable to both of said items, which will open it up to free damage before it recovers. When defeated, the Rathalos will drop the ground and flail around before lying still, as in its death animation in the Monster Hunter series.
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