Blood Moon

, also known as Red Moons, and Nights of the Red Moon, are events in. NaN Blood Moons occur under special conditions.

Overview
NaN Blood Moons occur at midnight on nights when BotW:'s power reaches its peak and escapes from BotW:'s control within BotW:, dyeing the night sky and the Moon red with BotW:. The effects of this BotW: revive any fallen monsters and enemies, returning them to where they once were prior to being slain. Mechanically, NaN Blood Moons are a way to refresh 's long-term memory and appear to purge the game's cache. Consequently, data stored within the game's long-term memory is reset, including the presence or lack thereof of NaN Materials and NaN Weapons in Breath of the Wilds. NaN Blood Moons do not affect things handled through short-term memory, such as Creatures, Grass, Trees, and Barrels. NaN Blood Moons also do not affect major bosses such as BotW: and the NaN Phantom Ganons inside the NaN Divine Beasts. NaN Blood Moons can be initiated by overloading the long-term memory through slaying monsters and enemies, visiting several locations, Sitting past midnight at NaN Campfires and NaN Cooking Pots, sleeping past midnight at Inns, or by playing the game uninterrupted for three real-world hours. NaN Blood Moons can be interrupted by entering specific areas such as NaN Ancient Shrines and BotW: before midnight, though they will simply appear again the next night. NaN Blood Moons are always represented by a full BotW: regardless of which phase the BotW: is in.

The effects of the BotW: begin around 11:30 PM, though the BotW: itself can usually be seen as early as 10:00 PM when the BotW: rises into the sky. At 11:30 PM, BotW: will rise from the ground, like when Link is aboard a still-corrupted BotW:. At 11:50 PM, the sky will turn red, and the clouds will begin to fly by very fast. When midnight hits, BotW: will warn BotW: that a BotW: has risen and advise him to take caution.

Cooking from 11:30 PM to 12:15 AM on a Blood Moon night gives Food an effect boost.

Trivia

 * An odd exception to the Blood Moon failing to trigger at midnight while in Hyrule Castle is during the first fight against Calamity Ganon. If midnight strikes on a Blood Moon night during this first battle, Calamity Ganon's health will refill to maximum as if neither Link nor the Divine Beasts had done him any damage. Strangely, this exception does not apply to the battle against Dark Beast Ganon.
 * It has not been confirmed whether the Blights are healed or left alone if fought during a Blood Moon night.
 * In addition to reviving enemies and Overworld Bosses, ore deposits are replenished, Treasure Chests are refilled, and Materials ranging from plants and trees, to gear left lying in the field, effectively respawn, allowing Link to collect them again if the ones he took before the Blood Moon broke in the interim period.
 * From a meta perspective, the Blood Moon exists to reset the game world, allowing the player to always be able to find materials no matter how long they play. So defeating enemies and Overworld Bosses, and otherwise picking the land clean of resources, increases the likelihood of a Blood Moon occurring sooner.
 * Hino of the Dueling Peaks Stable is the primary source of information on the Blood Moon, and can be seen acting strange during the time period that it affects the overworld. After midnight, should Link be curious if he can still reap the benefits of cooking under a Blood Moon, he need only see if Hino is still acting odd. If he is normal again, the effect has expired.
 * The sky turning red at 11:50 PM also occurs when Dark Beast Ganon reveals its core, allowing Link to deal the final blow.