Artwork from The Legend of Zelda
The Silver Arrow is a recurring type of Arrow in The Legend of Zelda series. It is primarily used to defeat Ganon in the games it is found in.
The Legend of Zelda
In The Legend of Zelda, Link can obtain the Silver Arrows in the final dungeon of the game, Death Mountain. It is needed to defeat Ganon, the final boss.
A Link to the Past
The Fat Faerie in the Dark Pyramid will give Link the only weapon which is capable of defeating Ganon: the Silver Arrows."
In A Link to the Past, the Silver Arrows are also needed to defeat Ganon. Link can upgrade his arrows with the Bow by tossing them into the Cursed Fairy's Mysterious Pond in the Pyramid of Power.
Silver Arrow Official Artwork from The Legend of Zelda
Silver Arrow sprite from The Legend of Zelda
Silver Arrow inventory sprite from A Link to the Past