A demo of The Legend of Zelda: The Wind Waker HD at gamescom has shown that the optional 'Hero mode' in the game could be unlockable from the very start of the game.

The demo has confirmed, however, that in this mode you'll no longer find hearts in the environment and will only be able to heal with potions or fairy encounters, while enemies will also deal out double damage.

While the overall gameplay in 'Hero' mode has been pretty much confirmed, rumours still abound that it will be available from the start of gameplay. However, since The Legend of Zelda: Skyward Sword and The Legend of Zelda: Ocarina of Time have their 'Master' modes hidden until game completion, it's very likely the same applies with Wind Waker HD.