The tap is a user interface sound from Lunime's Gacha games, the mobile dress-up and roleplay titles built around creating characters and scenes. Players hear it constantly while navigating menus, so it became closely associated with Gacha Life and Gacha Club videos, edits and memes shared online. Its short, familiar pop sound makes it easy to reuse as a timing cue outside the games themselves, which is why creators still reach for it when they want a moment to feel like a quick in-game selection.