Use your crossbow to grab gold and other treasures out of the sky. Once it has grabbled something it will pull it up. Heavy objects like rocks and large love nuggets will be harder to pull up. Between levels you can buy items that can help you.
Fill your love meter by the end of the level or it's game over. Your extra love points at the end of a level will carries over to the next level.
If you accidentally blow up everything on a level or you just feel like going on, you can press the "end level" button. If you haven't met your level goal it will be game over.