Huge fan of the show.  I picked this up at a local flea market for 75 cents, heard only bad stuff about it but at that price why not just get it!!!!  It is alright, the FMV is totally outdated and looks really pixely through the PS2 and an HDTV.  But it still seems like an alright point and click adventure, which I am a huge fan of.   
 
I got a good half hour into it and realized I couldn't save because you apparently can't save PS1 files on a PS2 memory card which kinda defeats the purpose of backwards compatibility.   So I'd have to spend a few dollars more to get a PS1 memory card but I think it's barely worth it.  Anyone out there play through this game?

I've seen it, but it's not my cup of tea. 

I am a huge fan of the show too. I have duplicate copies of every season and the movies on DVD and I have watched the series through at least 10 times by now. I really loved the PS2 game. It wasn't a great game really but it was competent enough and really scratched that X-Files itch. I know a place that is selling the PS1 X-Files game for $30 and it hasn't sold. I have been contemplating getting it but I am not sure I want to part with $30 for it just to feed my geek obsession with the show. Anything is worth a go for .75c though.

I beat this game like 20 times.  I had it for PC though i have no idea whats become of it  SPOILER WARNING: Click here to reveal hidden content.