This was really charming. It took some getting used to the controls, but once I did, I enjoyed exploring the small world. I didn't manage to catch a fish, was that what I needed to progress? I wouldn't mind playing a blackjack minigame.
Most people seem to have a problem with the fishing. Something about how I designed it is just not right… Basically you hold UP or DOWN to sink the hook. When a fish is nibbling, wait until the screen flashes (the fish bites) and then press UP at that instant.