in gen 1 your coordinates wrap if you make it to the edge of the world, and you can actually do it without glitches in one mission because of the dialog stalling
@LeeMoriya Oh maybe, I hadn't thought about it but that's not a bad idea.
I'm not quite sure about the OOB stuff, it might be my mistake but everything else is where it should be, so it's probably just leftovers. Heaven knows they leave plenty of junk in the void in their newer games.