In Animal Crossing series, Fireworks Shows appear during certain events. In Animal Crossing, the Fireworks Show was called Bonfire Night. During a Fireworks Show, they can be seen flying into the sky in the background and exploding in different colors, lighting up the ground and the inside of homes (when inside). During a fireworks show, there is no rain and the sky will always be clear. There is certain music that accompanies a fireworks show, which can be described as fairground music. Tortimer, the Mayor, can usually be found in front of the Town Hall giving away Roman Candles and sparklers, or party poppers, during firework shows, while giving some information on the festivities.
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. But Animal Crossing 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 Animal Crossing: Wild World
In Animal Crossing: 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 you to receive 2 of each items a night. Although if you pester him long enough, he might give you more. Both sparklers and Roman candles are equippable items. Once equipped to your character, you can use the item. Both objects shoot out sparks. Tortimer may also give you a fortune for the night. It will appear in a mail slot in your inventory. Fireworks still appear during the New Year's celebrations.
In Animal Crossing: City Folk
In Animal Crossing: City Folk, the fireworks show takes the same role as in Animal Crossing: 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 Animal Crossing: 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 Animal Crossing: New Leaf
In Animal Crossing: New Leaf, the fireworks show takes the same role as in Animal Crossing: Wild World and Animal Crossing: City Folk, and take the Animal Crossing: City Folk pattern by appearing every Sunday in August. 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 various other firework products. Redd hosts a Cookie Stand to the right of her. You can buy a Redd's Cookie from him for 500 bells a piece, each having a fortune that may or may not result in a prize if you turn it into Redd by the midnight of the show.
Animal Crossing: 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 you have any custom designs you wish to have light up in the air for the show. You may enter more than one, however changing the design in anyway will result in the firework changing as well in the future.