For me, the cherry on top of this little piece of embarrassing history is something that only a handful of people remember: The PS1 had an official mouse controller, and this was one of the few games that supported it.

I bought the mouse when it came out, and I got a copy of this game about 10 years ago, and I've gotta say it works very well. It was also how I played the single-player campaign of Quake 2 back in the day.