The levels above 12,000 are rearranged and mislabeled

Actually @MannyFae and @Pyrolight, strangely enough in the levels right at the top, such as 17,210, the final level of each episode is really easy to pass! I mean, you are almost certain to pass it either without boosters and certainly playing a single colour bomb. I have been wondering why this is, but it does actually help a lot if you know how to play the game to its full potential. I find it quite strange, but I 'm not complaining!

I can't access it at the moment, but in my memory I think I get 22 levels or 16 golden crowns as the task. I also get the option for just two UFOs to be played, so that is the one I usually go for.

Interesting, sorta a reward level? Honestly no idea on that one. I will just say King logic.