RCT3 was buggy, but the fireworks were amazing!

People created genuine art with it

https://www.youtube.com/watch?v=8ItBY3H_04I

https://www.youtube.com/watch?v=S9WgMeqM3bY

https://www.youtube.com/watch?v=UF5n5I6omSA

The devs made the fireworks effect editor accessible from within the game, which allowed the community to create thousands of custom ones:

https://www.youtube.com/watch?v=KI1IrLHN2hk

https://www.shyguysworld.com/Archive/index.php?topic=17808.0