Everwing is a vertical shooter launched for Facebook Instant Games in 2016, built around collecting and evolving dragon sidekicks hatched from eggs. Rarer eggs take longer to hatch and use distinct end sounds to signal their tier before the dragon is shown. As clips of lucky hatches were shared outside the game, this rare hatch finish was reused by editors for other collection and gacha moments. It remains popular because the short sparkly payoff instantly communicates a rare result without needing any on-screen explanation.