Hi, I have searched around here for a while and have been unable to find an answer to this question, so I am going to ask it.

Is it at all possible to get all the x? type monsters without having that particular cd/dvd by getting lucky with a stone I find during an adventure?

By "x?" Do you mean the unique types? For example, tiger/??? ...?
You can get those from rainbow discs from the plus dungeons. I've never gotten one though.
You... um... get them from the bosses I think.
There's a thread on the plus dungeons someplace around here, isn't there?

I'm not sure if it was ever confirmed or not, but I remember something about the Apes not being available off of Rainbow Discs.

Someone else who is sure would have to verify that, though.

Ive gotten a Rainbow Stone once and to my disapointment I got a Metal Jell )=

Now that's just plain bad luck. I've yet to get a repeated Rainbow Disk. Very fortunate.

I can't find any rainbow discs in the + dungeons. HELP MEH!