Devoted amiibo collectors are in for a treat with this game. If you have any of the four existing Metroid-themed amiibo, you not only unlock art, music, and a new suit for Samus, but also three Reserve Tanks and a new difficulty called Fusion mode.
Samus Aran (Metroid Series)
The Samus Aran amiibo from the Samus Aran & Metroid 2-Pack unlocks art from the original Metroid II: Return of Samus for the Gallery.
On top of unlocking new art, you also unlock an Aeion Reserve Tank, which holds up to 500 points of Aeion Energy when you pick up a Big Aeion Orb with a full Aeion Energy bar. When you burn through your Aeion Energy, this Reserve Tank kicks in and refills up to 500 points. Not bad, huh?
Metroid (Metroid Series)
Using the Metroid amiibo from the Samus Aran & Metroid 2-Pack unlocks Samus’ Fusion Suit and the Fusion mode difficulty, which is the hardest difficulty in the game. You must complete the game once through before you can play Fusion mode, but once you unlock it, you can expect even the most basic enemies to deal half an Energy Tank’s worth of damage with a single touch. It’s a grueling gauntlet that will satisfy if you’ve completed the game and need more of that Metroid: Samus Returns challenge.
On top of the Fusion Suit and Fusion mode unlocks, using this amiibo in-game reveals the location of the nearest Metroid.
If you decide to diverge from our Walkthrough’s path, this amiibo
helps keep you focused on what’s most important: defeating all Metroids on SR388.
Samus (Super Smash Bros. series)
Use the Samus (Super Smash Bros. Series) amiibo to unlock concept art for Metroid: Samus Returns in the Gallery.
You also unlock a Missile Reserve Tank, which refills 50 missiles as soon as you run out. To refill the Reserve Tank, visit an Ammo Recharge Station.
Zero Suit Samus (Super Smash Bros. series)
The Zero Suit Samus (Super Smash Bros. series) amiibo unlocks a Sound Check section in the Gallery. Listen to music from the game here, and let those atmospheric tunes wash over you wherever you go.
Music isn’t all you receive. You also get an Energy Reserve Tank, which refills three Energy Tanks when you run out of health—easily one of the most useful Reserve Tanks available, especially on harder difficulties. As with all Reserve Tanks, refill this one at a Recharge Station—an Energy Recharge Station, in this case.