I loved this. Almost closed the game when it was just math questions, but I'm glad I sticked around to the end and back. I have a special ineterest in games that teach something in fun ways and this game seems to be aiming at that really nicely
I had the exact same feeling, thought to my self what would happen if answer the question mark. Little did I know it was the goal, leading me to spiral of finding zero, couldn't close the game afterwards.
