It's a really fun idea, and using cards as a game mechanic is very popular at the moment, so it's fairly easy to learn! My one issue though was that my game seemed to bug out and continually give me a penalty when the monster was right. Right body, right color, right eyes, right mouth, minus score. That kinda killed the vibe for me. But the furnace idea was cool, I liked the difficulty curve - granted that you can actually get points when you get the monster right.