Fireworks shows take place in summer. You can design your own fireworks displays and get prizes.
Get a Bopper
During a fireworks display, talk to Isabelle outside of the Resident Services building to get a bopper that you can wear.
Enter the Raffle
Talk to Redd and you can spend 500 bells to pull a random number from the box. Every entry gets a prize. The prizes include things like balloons, cotton candy, frozen treats, boba tea, etc.
Design a Fireworks Display
Talk to Isabelle and choose one or more designs from your custom designs to design fireworks displays. Your fireworks will randomly appear sometimes during the show, appearing in a circular firework pattern.