This one's really hard. I was able to beat Corona Mountain, but I still have about 15 shines left BEFORE the blue coins. It's still a great experience, though. Just not really a game you can sit down with for a while, it gets really frustrating after repeated attempts. It also doesn't help that the camera is complete garbage in some sections, and Mario can be pretty clunky at times. I recommend taking this one a shine a day.