Yeah, your entry made me think about a game, but I forgot its name. ^^; The Switch proposes to emulate the game, having the console and the access to the feature, I could try out River City Ransom which is, indeed, a neat game.
Yeah, if I remember correctly you managed to send your game for the jam juuust in time, right?
Ah I see. But I think it's still a waste, this is an aspect you could have used to improve from the source material. But I understand your point of view.
About the AI, enemies in the original game didn't got stuck to you like glue to optimize their damage, some wait for an opportunity to strike or surprise like when you turn your back on them for example. River City Ransom also had varied enemies that could come to you armed. You could them disarm them to equip yourself and have an advantage against them in retaliation making each of them a little more unique and bring something new to the player to toy with.
Also, if you mean to expand your game in the end, it's perfectly fine to use an engine. It's just that RPG Maker... isn't exactly... made... for that. ^^;
You're most welcome! Despite all the flaws and oversight it can have, you did a good job on your entry. I enjoyed it. ^^