When I was a kid I spent several days trying to beat Labyrinth Zone. I just could not understand how to beat the boss. Eventually I decided to just ignore him and leave the water, which was the right way to do it. Now I can see that it was super obvious and I finished the rest of the game very quickly, but I wish I had the same patience today. Nowadays I would just watch a video on YouTube and be done with it. Still a great game.