Click on the button to begin playing. You can pause the game at any time with the same button. It will pause automatically if nothing happens for a while.
At level 1 or above you will hear a word. You can listen again by clicking the replay button.
Level 1: one letter will be missing - click on the missing letter.
Level 2: two letters will be missing - click on them in the correct order.
Level 3 or more: you will need to make the whole missing word.
Level 0: you won't hear any words, but can make your own words. When you make a word known to the game, the ear becomes available, and you can click on the word or on the ear to hear the word. The word will float off to the side. Delete the word with the clear button and make more words.
You can replay words which have floated off to the side by clicking on them.
The game's dictionary is limited but should recognise most common, short words. This will get better over time.