[Edit: I appreciate the response, and I hope you can see from the score I gave that I do like this game. Creating stuff is hard, and I don't want to crap on someone's work. It was just such a frustrating feeling, as I was trying to do an undefeated run, discovering that I was stuck with a tarnished save (which I will admit, is not the same as unwinnable, since there isn't a "game over" state, so that was a misspeak on my part). Anyway, keep making stuff, keep learning, and I look forward to what you make next.]
I'm having fun with the game, but I've gotta call out the autosave, specifically the fact that it can't be turned off. I went into the settings, switched off Autosave, and as I closed the menu it immediately autosaved. In fact it autosaves every time I open and close the menu.
And it autosaves OVER the last manual save, not in a separate autosave slot.
AND it also autosaves after every single battle (not sequence, each battle), meaning that if I enter into a 5 battle sequence, and discover halfway through that I can't win 5 battles in a row, that's it. Save game is toast. Period! Finito! If I didn't use multiple save slots, that's it, I'm screwed, because it autosaved over my last manual save, and if I load it back up, I'm back in the middle of this battle getting my ass kicked. That's a HUGE no-no in design.
I mean, I'd love to talk about some of the other game mechanics, and say some positive things, but that's a game-breaker. When your game overwrites the manual save, even with Autosave turned off, and makes itself completely unwinnable... Sorry, gotta call that out.