This game is really cool, I like how the caverns like adapt as you go deeper (even if it wasn't really strange persay). I think what you should focus on next is getting the movement correctly. Moving around (especially moving) felt really clunky in the game and it made it difficult for me to escape places like the lava (that's where I died lol). Congrats though! I'm very impressed of your first game, good luck with the jam!