Nice game! I really liked the art style and music, and how the music changed depending on where you were! I also enjoyed attacking the enemies, the push back and brief flash of red were satisfying to see whenever I hit them, although I thought the limited angles I could attack in was kind of awkward. I also wished I could see the enemies' health bars so I'd know how much more I'd need to hit them, but I also know some games choose not to show enemies' health so that's up to you! One other thing I'd like to mention is that it wasn't super clear to me which tiles were blocked off (colliders) at first glance (for example, in the areas outside the cave, I first notice the contrast between the greenish grass and the orangeish brownish dirt/sand/stone, before I see the dotted lines indicating cliffs), but I'm also not an expert here so keep that in mind too haha.
Wait this is your first time making a game?? I wouldn't have guessed, especially since this is for a game jam! Well done!!