From Nintendo:
KEY INFORMATION
When an evil darkness enshrouds the land of Hyrule, a young farm boy named Link must awaken the hero...and the animal...within.
* When Link travels to into the darkened land of Hyrule, he transforms into a wolf and must scour the land with the help of a mysterious being named Midna.
* Ride into battle against troops of foul creatures with an incredible horseback combat system, then take on massive bosses that must be seen to be believed.
* Many puzzles stand between Link and the fulfillment of his quest, so players must sharpen their wits as they hunt for weapons and items.
Game Storyline: Link, a young man raised as a wrangler in a small, rural village, is ordered by the mayor to attend the Hyrule Summit. He sets off, oblivious to the dark fate that has descended upon the kingdom. When he enters the Twilight Realm that has covered Hyrule, he transforms into a wolf and is captured. A mysterious figure named Midna helps him break free, and with the aid of her magic, they set off to free the land from the shadows.
Characters: Link, Zelda, Midna and many others, both new and old
How to progress through the game: Link must explore the vast land of Hyrule and uncover the mystery behind its plunge into darkness. As he does, he’ll have to enlist the aid of friendly folk, solve puzzles and battle his way through dangerous dungeons. In the Twilight Realm, he’ll have to use his wolf abilities and Midna’s magic to bring light to the land.
Special powers/weapons/moves/features: Besides his trusty sword and shield, Link will use his bow and arrows, fight while on horseback and use a wealth of other items, both new and old.