There are different events which include fireworks, usually revolving around events in reality which involve them.
In Animal Crossing
In Animal Crossing, fireworks can be seen in the lake on the 4th July, which coincides with American Independence Day. Animal Crossing, however, celebrates the opening of the train station. They also appear during New Year's Eve, to celebrate the end of the year and the beginning of a new one.
In Wild World
In Wild World, the fireworks for Independence Day for America was removed, and a new event which happens every Saturday in August at 7:00pm takes its place called the Fireworks Show. During the Fireworks Show, Tortimer will be outside the Town Hall. Talk to him to receive either a sparkler or a Roman candle. Tortimer will usually only allow the player to receive two of each items a night. Although if the player pesters him long enough, he might give them more. Both sparklers and Roman candles are equitable items. Once equipped to the character, the player can use the item. Both objects shoot out sparks. Tortimer may also give the player a fortune for the night. Fireworks still appear during the New Year's celebrations.
In City Folk
In City Folk, the fireworks show takes the same role as in Wild World. During a Fireworks Show, villagers can be seen and heard, clapping at the fireworks while looking into the sky. Instead of taking place every Saturday like in Wild World, Firework Shows are held every Sunday in August. About a week before the show, an announcement will be written on the bulletin board about Sunday being the fireworks show.
In New Leaf
In New Leaf, the fireworks show takes the same role as in Wild World and City Folk, appearing every Sunday in August, from 7:00PM until Midnight. During a Fireworks Show, villagers can be seen and heard, clapping at the fireworks while looking into the sky. They often make remarks about the fireworks. Isabelle hosts the event in the plaza, and hands out gifts such as boppers and firework fountains. Redd hosts a Cookie Stand to the right of the plaza, players can purchase a Redd's Cookie from him for 500 bells a piece.
New Leaf also takes a new turn in the Firework Show. If you talk to Isabelle anytime before the show starts, she will ask if the player have any custom designs (these can be made at the Able Sisters Shop) they wish to have light up in the air for the show. The player may enter more than one, however changing the design in any way will result in the firework changing as well in the future.
In New Horizons
In New Horizons, the Fireworks Show was added in the 1.4.0 Summer Update (wave 2) on July 30, 2020. The event is available every Sunday evening in the month of August, starting at 7:00 PM and ending at 12:00AM. During a Fireworks Show, players can custom design their own fireworks, and win raffle prizes from Redd such as sparklers, bubble blowers, pinwheels, firework, balloons etc. Each raffle number from Redd's will grant the player a different item. The uchiwa fan and tweeter come in one variation. Each of the handheld items are animated and can be dropped on the ground. Unfortunately, the bubble blower consists of only 10 bubbles which have a limited not infinite quantity. The sparklers are similar which are consumable. Lastly, the fountain firework is the only item that is labeled as used once it's lit and can be thrown away. There's 16 items total for the event that consist of 5 variations of balloons, 4 handheld items, 4 bobbers and 3 types of fireworks. Isabelle will give the player one of the bobbers as a special gift for the event. In order to receive bobbers you can use an alternate account or time travel to talk to Isabelle. This will randomly give the player 1 of the 4 bobbers from the event. If you speak to her once more, you can add a sequence of custom designs fireworks that will appear in the sky. Nintendo will send the player a gift in the mail which is a special firework inspired wallpaper.
Lazy villagers who are currently celebrating the fireworks show will have their sleep times delayed until the show ends.
- In New Leaf, the Fireworks Show theme replaces the Main Street theme for the duration of the event.