The Gridlz who are thirsty for letters. You have to give them letters to make them happy!
You are standing on a tower. The Gridlz who are thirsty and are coming towards you. You have water cubes all around you. You will hear a letter. You have to throw the correct water cubes to the Gridlz and hit them. You can also throw them in their way. Put the incorrect ones into the hole in the middle of the tower. If the Gridlz manage to reach the tower, the tower will get lower, you have to keep them at a distance.