Ocarina of Time Masks - Zelda Dungeon Wiki, a The Legend of Zelda wiki

In Ocarina of Time, there's a Mask Shop where you can borrow masks, sell them, and then return with the money to borrow more masks. The first four masks serve as part of the Trading Sequence. If you finish this entire Trading Sequence, you can get the Mask of Truth, which will allow you to speak with Gossip Stones. You'll also be able to get some upgrades as well as three other fun masks.

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