Complexity varies in this way:
1) Level 1-3: the word with the guessed letters is shown at the bottom.
2) Level 1-7: the correct letters are colored in the selected words.
3) Level 1-9: the first word is selected for free.
4) Level 6+: stars show the number of correct letters in the selected word.
The next levels are on the last difficulty, when only the number of correct letters is known.
So if you see stars as on the screenshot, it's the way it's designed. I will add explanations later so that players will understand these nuances. Thank you for your attention to detail.
