Press the green flag and enjoy! Any other instructions are told by the characters throughout the story! There is one point in the story, when they start playing Happy Birthday, that it will go on forever.
I know I'm a little late... but HAPPY BIRTHDAY SCRATCH!!! And well guess Giga, Pico, Nano, Gobo and don't forget MRS. UNICORN want to wish you a happy birthday, too. I got the information about Spain from a friend and yeah well that's all. I'm sory for the button thing. If you click it it may either not really record your username or record it like, 5 times. Just ignore it.