Port launch bugs

So the game itself had been running smoothly with no bug reported for the past couple years, but the porting to itch created new bugs (dirty stuff in my code that didn't cause issues on its previous hosting platform but make itch trip up). I've already updated the game a couple times to fix some initial issues, but it's likely more will pop up at random points of the game (it's been so long since I wrote this that I don't remember off the top of my head which files are likely to cause problems).

Thus I recommend saving a lot for now -- but I'm also unsure how the saving system will behave on itch.

Sorry about that & please feel free to report any problems you encounter!