Thank you so much for playing! That’s really weird you got stuck in the shop, I have zero idea how that happened. I never tested the game with controller much so I didn’t realize it was unresponsive, I’ll have to fix that in an update post-jam :/
EDIT: Ah, I know why you get stuck, it’s cause the exit button is also the “equip” button so you can only leave when you’ve selected a character you already own.