Ok.
Today i was messing about with my gameshark.
Then i thought about the debug menu in CBFD and how to get it, and i thought i'd try it.
So, i pulled the right of the cartridge, and everything started to go pixel-y and the sound started to distort, then i pushed it back in, and the game stopped in it's tracks.
I resetted the game.
Everything was GONE. ALL DATA. EVERYTHING
But the one thing that makes this significant.
All of the stop 'n' swop items were gone too. I had to start completely at the beginning.
I was wondering if my N64 got damaged. I told a retro game shop about this and they said to me that... That shouldn't have happened. They said it might have been in the games programming.
Wait. Games programming? Why would anything like that be in there?
(I'm not saying it is in the games programming, i'm just repeating what they said)
Strange stuff. But just in case it damaged it and thats why the data went, i'd recommend you don't do this. I don't know what i was thinking