I'm generally not one for find the difference games, but this very enjoyable! Yes, it's probably because I was quite motivated because of the medals. In fact, it's the first game of its kind I've completed in a long while! I really like how the pictures tell a story. I didn't even notice that at first. It helps that the artwork is so good.
Some of these games make the mistake of being too hard or easy. It's nice to have a game that has a little of both. For some reason, the designs remind me of Taco Bell. I was reminded of Warhammer 40K at the end. I don't play that, I just hear about it a lot.