I can't find the last star(s). So far I've found stars in these levels: 1st level, 12th level, 13th level and 16th level. Can you give me clues on where to find the last star(s)?
Thanks for the clue! I'm sorry for making you wait, I forgot that I made this comment so I didn't check if I got any replies. On level 12, try to jump on top of the text. On level 16, don't go up, try to go down the floor.