Click the green flag to start, click the stop sign to end the game.
Keyboard Mode: Use the Arrow keys to move. You'll automatically collect berries when you make contact with them.
Touch Controls Mode: The mouse will follow your finger if on mobile (Phone or tablet), or if you're using a computer mouse, just click and hold and he'll follow too.
Your objective is to just...collect berries and try not to get captured by the Vampire Duck while doing so.