While Wind Waker hit the GameCube over 10 years ago, fans have discovered a new secret in the game. The boss of the game’s Forbidden Woods is traditionally killed by stunning him with the boomerang and slashing with the sword. However, the YouTuber Fish_Waffle64 has uploaded a video showing another way to defeat the evil Kalle Demos. Instead of using the sword when the boss is stunned, pouring out a bottle of Forest Spring Water will kill him in one hit. It is understandable why this secret has gone undiscovered for so long, the game never hinting the water will have any effect. It works in both the GameCube and Wii U versions of the game so make sure to try it out.