Hello. May I know what is [M] for in Fossil fighter champion? I'm guessing there's no cheat for always dig up a fossil since I don't see one.
That is likely a Master/Must Be On Code. Which on Gamesharks and Action Replays are codes that must be activated for the other codes to work. The person who compiled the codes for the .dat must have left them there accidentally, as I don't believe they're needed. At least no other games have them.
As for the other thing, you could try googling around for it and see if someone made one.