thanks for the feedback and reporting it
it's the one bug I mentioned in the description as far as I remember. I wasn't able to catch it myself because as the creator I tend to do things in a way they were supposed to be done, my son caught it, but failed to describe what he did and when.
but fear not, you can play the game normally and finish it (still a lot to come)
try one of these ways:
1) check the basement barrel for a cup and try again with the swamp water
2) you choose new game and click through the part of game you already completed (it ill take you 3-3,5mins bc you already know what to do) and don't use swamp water before you got the cup
As I said it's 100% completeable
And thanks for spotting the references)
I'll look into the code for a fix, but I haven't used RPG Maker in 2+ years and don't remember much also don't remember how the game logic was made, so it will be a grind, in the meantime I hope you try to complete it beacuse the most interesting part is ahead in my opinion. Cheers