A Crucial Item

= Masks = the actual title but I don't know how to change titles :p

Masks are easily obtained by collecting coins, (I think finishing Lorekeeper's quests), and beating Sid Tower. Here's a list of some masks.

Green Mask: Easily obtained by collecting 10 coins

Sun Mask: Obtained when you reach the dying Sun and finish the cutscene and dialogue.

Coin Mask: Greedily obtained by collecting 75 coins

-Sid Mask: Sid Tower-