Enter the characters on the right side of the screen.

There is a separate key for each character.

When you meet the trawl, press
Punch the uncle with the picture of his uncle on the button,
The grandfather on the button with the picture of the grandfather intervene.

If the uncle hits you or touches the Trawl, you will lose points.

If you brush your grandfather's teeth, you will both delight your grandfather and earn points.