Metroid: Samus Returns has a standard hard mode that can be unlocked after beating the game
Metroid: Samus Returns 3DS Review – The Road To Metroid Dread, Ep. 15 - PHG
Lbabinz 🇨🇦 on Twitter: "The incredible Metroid: Samus Returns #amiibo / 3DS stands from Rose Colored Gaming have arrived. Super happy with how they look! https://t.co/BFjvc0YxVa" / Twitter
Here's What Those Lovely New amiibo Do In Metroid: Samus Returns - Nintendo Life
Metroid: Samus Returns Special Edition and amiibo announced - NintendoSoup