I'm actually currently playing through this VERY game!
I'm really enjoying it so far. First time I played it was around 1996 I think, and I didn't really have a lot of respekk for it, since it seemed like such a clone of the beloved Nintendo franchise. However, over time and now actually playing it again, it really has grown on me. I think Neutopia II is a big step up (other than the fire glitch?).
If you're really looking for some more shelf candy to show off, I would just hit up Jodi or turbokon to get yourself a reproduction HuCard and snazzy case. Otherwise, if you're on a quest for complete/New/CIB yadda yadda, you should just go look around the auction sites, as asking around here will likely give poor results...