First of all, thanks for the nice comment and much needed feedback! The game had some content cut due to lack of time, which I intend to fix after the post jam period before working on the sequel. Regarding the snifish bug, in version 0.2 there is a debug event on Dr.L's desk, just interact with it and you should be able to proceed. Regarding the plug-in question, the answer is no, no plug-ins were used, this game is free of any external modifications.
I'm playing the version proposed for the Jam. I'd already seen the comment about debug mode, but it's not in the version I'm playing.
Well done for not using a plugin. You don't need to make any external modifications or plugins to unlock your potential in RPG Maker. I don't know if you're familiar with this, but I'm offering it to you:
https://docs.google.com/spreadsheets/d/1-Oa0cRGpjC8L5JO8vdMwOaYMKO75dtfKDOetnvh7OHs/edit
This site provides a large number of script calls that can be used directly in the RPG Maker script section without having to modify any of the code. I myself don't use plugins or modify RPG Maker in my games (apart from a skip title when I want to make my own title screen). So I know what you had to go through to make all of your games.
I want to point out that I'm not exactly nice. In any case, that's not why my comments are there. Some of the participants in this jam probably didn't appreciate my comments about their games. You only have what I think you need to go further. If you like it, so much the better; if not, that's life.
Do not thanking me for my kindness, but yourself for your hard work. Rest assured, I will follow your progress and thank you for your response.