Everwing launched in 2016 as a Facebook Messenger Instant Games vertical shooter where players collect and evolve fairy-dragons. Hatching eggs is central to progression, with rarity tiers rising from common to legendary, and the end cue marks the highest tier reveal. As players shared big pulls and hatch results in groups and clips, the legendary finish became recognizable outside the game itself. It is now reused as a generic rare-loot sound for gacha pulls, pack openings and reward reveals where the payoff needs to feel earned and special.