Enigma da Medusa

For this, observe the tip and choose a letter.
If the letter is correct, it will be displayed in the hidden word. If you're wrong, one of the obstacles will open and Medusa will come a little closer. If the last obstacle is opened, you will be turned to stone!
If you discover the hidden word first, you will defeat Medusa and move on to the next stage.
Use the potion when the going gets tough.
Complete 20 levels to earn a Greek vase.
There are 10 categories (objects, food, music, animals, astronomy, English, IT, sports, professions and transport).
Two difficulty levels.
Will you be able to conquer the 10 vases?