Bunny Day is a recurring event in the Animal Crossing series, most notably gaining meme status during the 2020 release of New Horizons. The event features Zipper T. Bunny, a costumed rabbit who hides colorful eggs all over the player's island. The meme culture surrounding Bunny Day primarily stems from the sheer frustration of players who found eggs in place of valuable resources like wood, iron ore, and rare fish. Additionally, the uncanny design of Zipper, who appears to be wearing a costume with a zipper on his back, led to numerous creepy theories and memes about who is actually inside the suit.