Great game. Really enjoying the concept and like the additional mini-games, however there should be separate chests based on how you spin. It's pretty disheartening to win 20 Universe Marbles after spending 100 to get the key in the first place. I can see winning free marbles on a free spin, but the pool should be different if you use a key.
Level one is possible with 6 or fewer. You just have to go directly for their continent and not worry about getting that +5 bonus for completing Europe.
I currently went through and perfected every level except a few. When I went through the walkthrough I found that the ways that I had went were correct, but it seems there are a few levels where the max score is more than the score you can actually achieve. The levels are: 20, 25, 30, 38, and 40. If the walkthrough shows the correct path, then these totals aren't correct.
 "Cosmos Quest: The Origin"){kind=icon}
 "WarLight"){kind=icon}
 "Prizma Puzzle Challenges"){kind=icon}
 "Music Catch 2"){kind=icon}