Legend of Zelda Ocarina of Time N64 Easter Egg - The Angry Guard

When you meet Princess Zelda for the first time, shoot the slingshot at the left-hand side window (opposite the pictures of Mario, Luigi and Bowser in the other window). An angry guard will tell you to stop messing around and will throw a bomb at you. If you do the same process on the other window you will get some rupees!