No life stage warning/notifications?
Monster Rancher Metropolis: Monster Rancher 2 Archive (PSOne): Miscellaneous Q&A (Post New Questions Here): No life stage warning/notifications?
By elcisitiak on Monday, September 5, 2011 - 01:40 am:

I just raised a pure Mock (the one who appears after another monster dies) from creation (appearance?) to death, without once getting any sort of notification from Colt about it's life stage. Nothing about it reaching adolescence, getting old, being ready to retire, nothing at all! Do you know what happened? (He was about 5 and a half years.) I saved frequently so I'm okay as far as that goes, because I saw his statgains drop dramatically, but I'm still irritated that I didn't get any sort of notifications whatsoever.

By Lisa Shock on Monday, September 5, 2011 - 10:17 am:

Did you do a lot of errantries?

By elcisitiak on Monday, September 5, 2011 - 03:20 pm:

Not particularly. I think we did five or six. We noticed a dramatic increase in its stat gains while it was young but were never told it was a crucial period in its life or anything. I hope I don't sound stupid being confused by this, but in years and years of playing I've never had this happen. Thanks! (By the way, amazing site!)

By DurahanDanLP on Tuesday, September 6, 2011 - 04:27 am:

I'm not entirely sure how the warnings work, but I think Colt will inform you THE WEEK it happens. However, it's possible that you lost lifespan when this was supposed to happen (stress, tournament, etc) or you were out on errantry or expedition when the warning was supposed to come.

So, for example let's say Colt was going to warn you when your monster had 50 weeks of life left. When your monster had 52 weeks left you entered a tournament, and next week his remaining life was 45 weeks (-1 for the week, -6 for a battle), so no warning came.

By Lisa Shock on Tuesday, September 6, 2011 - 01:59 pm:

That's what I was thinking. The timing of some of your activities happened to interfere with the notices.

By Silver Latios on Wednesday, March 13, 2013 - 07:19 pm:

I think there may be a glitch that can stop triggering these events.
I remember getting them way back in the day, but in the past real-life year of playing fresh from a new file, hundreds of years and dozens of monsters later I have not gotten a single warning, from the very first Zuum in the year 1000. I doubt I happened to miss the trigger week for every single monster I have raised, as many never did a single battle or errantry. I know you're supposed to get them but I think it's possible they just won't happen. I have the same problem with retirement warnings, too.