I struggle with creativity so I found it hard to come up with puzzles, I thought of a different ending where the human locks itself in a chest, throws out a bomb and you had to find the key to a box with a screwdriver to open a vent to find the key to the chest in 30 seconds, but I thought that would take too long with the thing I was using.
I also never got the bug, maybe you weren't close enough? The thing I was using uses blocks to code and the distance block does go from the centre so that could cause some issues I guess.