Press the letter you want to change the costume on and press the key and to make it go back to normal press space for a and the rest number order till you get to 9 and 0 then click the sprite to make it go back to normal and click the flag to make ALL of them go back to normal. Press the arrow keys for 4 letters to go back to normal.
IT WILL NOT GO WELL IF U DON'T READ THE INSTRUCTIONS!