Thank you so much for the kind words and for giving the game a try in the first place! Really happy the skill tree and overall amount of content stood out to you.
About the menu issue—yeah, that’s almost certainly the hardcoded tutorial that forces you to begin New Game+. During that specific sequence, some menus (like the card screen) can lock you in, and the back button you saw was sadly non-functional there. I know it’s a pretty rough design choice, and I plan to soften those restrictions after the jam. I really appreciate you bringing it up, and thanks again for playing!