I created a site there dedicated to a video game I played as a child:

https://laserblast.neocities.org/

It was a lot of fun to build.

I had to use CSS to implement a <blink> equivalent.

There's so many amazing sites people have made on Neocities. I personally didn't have the ethos and dedication to stick with it, but the fusion of creativity and technical skill makes it something else.