hi, I seem to be able to get underneath the map completely. the textures are broken and I can't seem to consistently recreate the problem. I can't place any objects or break the walls. this might be caused by the saving error that the bottom right block has, but I'm not sure how PICO-8 programing works (I use C# mostly). if I save and load the world the entire world looks like this but the character is fine.                                   

That is quite weird. If possible, do you mind posting the content of a world file from before and after saving it while it’s like this?

I’d like to investigate this infestation of chunks of King Slime.