A 100% complete walkthrough for the original "The Legend of Zelda" on the NES. This video shows the locations for all Heart Pieces, items, upgrades and even every room in all dungeons.
This took me a while to make, as a lot of planning was required.
Nintendo Switch NES games playlist: https://www.youtube.com/playlist?list=PLtA3RKX1_Yx2wIIrOXVsz96qN6bfQeQKH