Happy BIRTHDAY!!!!!!!!!! Zim: Happy birth dia You earth-slug. Gir: I'M MAKING THE CAKE!! Gaz: I guess I'll say happy birthday. Dib:Happy Birthday. Don't you realize ZIM's an ALIEN?? Gaz: Why do you have a head? GIR: BUUURRRIIITTTOOOSSSSSSS!!!!!!!!!!!!!!!!!!!! ZIM: Gir! OBEY ME! FOR I AM ZIM!