Three more things. The ability to repair any broken or damaged weapon in any town, with the cost in rupees for doing so related to the power of the weapon.
Secondly, using this (or something similar) for the opening title theme:
Can't be a coincidence, that imagery. I really love the long hair and the appearance of dirt being kicked up around the boots, giving the impression that Link's just been knocked back by a severe blow even though he blocked it with his shield and dug in his heels to avoid falling over.
Which brings us to three; the next step up in T-rated violence. A scene where a major villain defeats Link in a 'hopeless boss fight' and slams an iron boot down on his sword hand, breaking it and giving Link's voice actor plenty of room to show off the best of his well-honed skills at shouting. After that you'd have to fight through an area or two without being able to use swords or the bow similar to Eventide Island, forcing the creative use of your other gadgets until you find someone with magic that can heal the shattered bones of your hand.