April Fools' Day

April Fools' Day (known as April Fool's Day prior to ) is an event held on the first day of April in the. Like its real-world counterpart, April Fools' Day generally consists of pranks being played on the player.

In
On April Fool's Day in, Tortimer will appear near the wishing well. If spoken to, he will jokingly say he is retiring and making the player the mayor, then he will give them, a nonfunctional "prank" NES game.

Additionally, various special characters tell the player a prank when first spoken to:
 * Blathers tells the player that a fossilized alien life-form was donated to the museum, from the planet "April Fool".
 * Booker tells the player that he lost 20 pounds from his new diet of doughnuts and coffee, before apologizing for pranking them.
 * Copper informs the player that it is April Fool's Day and warns them about being pranked, particularly by Booker.
 * Kapp'n tells the player that he does not actually know how to sail.
 * Mabel tells the player that Gracie's outfit is just body paint.
 * Mom sends the player a letter saying she and the player's father are giving them their inheritance.
 * Pelly tells the player that her and Pete are going on a date.
 * Pete tells the player that today is his first date with Phyllis.
 * Phyllis tells the player that Tom Nook is closing his store and moving out of town.
 * Porter tells the player that Mr. Resetti has no fur under his helmet.
 * Sable tells the player that Tom Nook is going to start selling "very saucy" bikinis at his store.
 * Tom Nook tells the player he is having a special one-day sale where everything is 90% off.

In
On April Fool's Day in, the player receives a letter from Mom saying that a tree fell onto their house and crushed it, before revealing it was just a joke.

In
In, Tortimer will appear outside town hall on April Fool's Day and will say he does not understand the idea of April Fool's Day, before pranking the player by giving them nothing. After he reveals it was a prank, he gives the player the —a furniture item whose appearance when placed in a house is identical that of a furniture item dropped on the ground outside. The player also receives a letter from Mom.

In
In, April Fools' Day is a larger event, being hosted by Blanca, who appears in the event plaza. If spoken to, she will tell the player that she wants to play a game with them. The game involves Blanca appearing in a villager's house disguised as the villager alongside the real one. The player must run around their own town trying to find Blanca among any villager house, where two villagers will be angry at each other if the player manages to find where Blanca is. If talked to, the villagers will have an argument, and the player must, through each character's dialogue, determine which one is Blanca. One of the characters will give the player a towel, which the player must give to one of them; if given to Blanca, she will wipe off her disguise and move to another villager's house. Which character is the imposter is determined by statements made by them, including their favorite saying, birthday, skill, future goal, and number of siblings.

If the player correctly identifies Blanca, the real villager will give them their picture, and if the player correctly identifies Blanca in each villager's house, she will send them in the mail the next day.

In
Although April Fools' Day does not appear in as a standard event, it appears as a Nook Shopping seasonal event beginning in the 1.9.0 Free Update. From March 26 to April 1, the player can purchase a from Nook Shopping.