Managed to get item pickups finalized. Also managed to get hazard tiles working, along with objects interacting with attacks. Outside of a few persistent wonks I don't know how to fix, the combat system is effectively done--now I need to make a couple levels, do writing, draw cutscene graphics, and gather music. All in less than two weeks. Ahahaha...
Action battle systems in RPG Maker tend to be rough, the engine clearly wasn't designed to handle it. But I'm quite fond of how this came out, and I think it feels extremely fun to play.
I hope I can refine it down the line. I think there's potential here.