Nearly 99% of the bugs are all caused by RPG Maker Unite. Heck, it's listed as a feature on the game's page.
Being immortal is weird, because in many tries I've tried I have died. (Heck, I literally can game over when reducing hp) There's pretty much no reason for the game to have 0 hearts and not game overing, since that's checked from the player's current health... really, really weird.
Sorry that you didn't like the game.