A Lightning Lock from A Link to the Past, as seen in-game
A Link to the Past
The Lightning Lock is placed by Agahnim on the Hyrule Castle Tower, blocking anyone from entering. Link can witness the Lightning Lock early in the game but cannot destroy it. As it is created by Agahnim's evil magic, it cannot be destroyed with anything less than the Master Sword. Striking it will simply cause Link to take damage.
Ancient Stone Tablets
- Similar electrified barriers appear in The Wind Waker and Four Swords Adventures, also at Hyrule Castle in each game. In The Wind Waker the barriers also appear in Hyrule Castle, and can only be removed by destroying all the enemies in the area. In Four Swords Adventures, only the Fairy Queen can remove the barrier blocking the way to the tower of Hyrule Castle.