Green flag. In automatic mode, the outline will automatically morph from one Scratch character to another random Scratch character. Press <S> key to toggle Show mode. This shows the characters on top of their outlines between morphs. Press <Space> to toggle manual mode. Then you can choose the next character using the number keys: 1 - Scratch Cat 2 - Gobo 3 - Tera 4 - Pico 5 - Nano 6 - Giga