Before starting, READ THE INSTRUCTIONS. On the first level, click with the mouse. If it says "You were wrong," wait 3 seconds to prevent the game from freezing. On the second level, use the arrow keys (up, down, right, left), and on the third level, wait until the heart is in the center of the screen to shoot it with spacebar. If at any level the game freezes or does not work, press the green flag again.
