Zelda: The Wind Waker 2nd Time Through

Well, like I said above, don't use any potions, don't use those hearts. Hell, don't use any potions throughout the entire game and the difficulty curve ramps up quite nicely.

Eh, if I had to heart to play through the game again, I would, but I have too much on my plate at the moment. I've recently gotten DMC 1 and 2, Zelda Four Swords, and because of you, I'm playing BO2 limitedly, and have recently purchased Soul Reaver 1 and 2 as well as Defiance. They better be good!

The LoK games are fantastic. As I've said numerous times, Defiance is certainly the best of the bunch, but both of the SR games are awesome as well.