If you're unable to figure out the remaining words for the level, a Hint can be a good place to start.

Keep in mind that any Mystery Words that appear as blanks are required to complete the level. Each set of letters is part of a particular theme, and the Mystery Word will also be part of the theme.

There is no option to skip levels. They must be completed in order.

The Support Team is happy to investigate errors but does not provide suggestions (including Hints to the Mystery Word) when you're stuck on a level.