I enjoyed your opening, though the dialogue on the black screen could've benefitted from some art behind it -- even if just a screenshot of the map or a battleback, to avoid the black void.
Ah, I am quite a fan of the Ancient Dungeons tiles! There's just something about them that helps set up quite a lovely atmosphere. You do have some minor mapping errors, but nothing that keeps me from playing the game. Similarly, there are a few spelling / language issues, but since I noticed your descriptions are in Portuguese, they are definitely super minor -- but make sure when you're working on an English jam that you remember to also translate your database entries!
Some of the fights are VERY dark, since there's no battlebacks being used, which makes it very hard to see.
I think you have a good start here and hope you'll continue improving post-jam! :)