Unique Enemy / Metroid

Unique Enemies in Metroid:

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• Metroid II: Return of Samus: Unlike Metroid: Samus Returns, this game includes some very rare enemies that only appear once or twice:
  • Only two Blob Throwers are in the game, both located on the roof of the Chozo ruins in Phase 3.
  • Only a single Shirk is found in the entire game, located in Phase 4.
  • Two Automs, which are the only ones in the game, share the same room as the Shirk.
  • Only two Ramulkens are in the game, with one found in Phase 7 and the other found in Phase 8.
  • Only two Gunzoos are in the game, both located in the Chozo ruins in Phase 7.
  • There are some other enemies that are more common than the aforementioned enemies but are each found in only a single room. These include Senjoo, TPO, Meboid, Proboscum, Gravitt, Skreek, and Drivel.
• Super Metroid:
  • A Mini-Kraid is encountered only once through the whole game, in the room right before the actual Kraid. It may be a nod to the boss originally being much smaller in the first game and this enemy might be here to showcase the evolution of the character.
  • Maridia has the most unique creatures out of any area, possibly a Truth in Television reference to the wide variety of life found in the oceans:
    • A bizarre walker by the name of Shaktool carves a path through a wall for the player that eventually leads to the Spring Ball upgrade.
    • A unique turtle creature called Tatori can be found with its young in a tall cavern. Standing on its back can give Samus early access to the room's Energy Tank and Missile Expansion, but touching its young will make it attack her.
    • The Oums are ammonite-like creatures that impede Samus' progress through a hallway, but are otherwise pretty harmless. They only appear in this one segment.
    • A red Skultera only appears in a single room that connects to Brinstar. Asides from its color, it's identical to the other Skulteras found throughout the game.
  • The hallway just before Ridley has two silver "ninja" Space Pirates. The only other place they appear is during the escape sequence, where they are instantly eviscerated by Samus' Hyper Beam, though those are technically a different variety of the other space pirates in the escape, with less HP and more vulnerabilities compared to the "true" ninjas faced in Norfair — though in most cases players will probably barely notice those last two enemies in the game because Samus's only weapon at that point kills them instantly. (But that would make them yet another unique enemy, amusingly.)
  • There is a unique Geemer colored like Samus's Varia Suit which mimics her movements above a particular room in Crateria. If you leave the room, it will be gone when you reach its spot. It doesn't do anything or drop anything special, it can't hurt you, and there is no explanation for it.
• Metroid Prime:
  • Stone Toads are found in just two rooms of Chozo Ruins; one blocking a Morph Ball passage in the Energy Core; and four hanging out on the galleries of the Reflecting Pool.
  • There are a total of three Grizbys in the game; the first is on the Burning Trail leading into Magmoor Caverns; the other two guard platforms in the Lake Tunnel shortly after.
  • Only three Puddle Spores are encountered in the game, two of which disappear permanently after the Grapple Beam is acquired.
  • Ice Shriekbats only appear in one room in the entire game (the Ice Ruins West area of Phendrana Drifts) and are infamous for how easy it is to lose their Monster Compendium entry if you don't watch for them. They blend in with the rocks they roost on until you get close and can be easy to mistake for the very common ordinary Shriekbats you've probably already scanned. When you get close they dive bomb into you killing themselves in the process and they never respawn afterwards. Even if they don't kill themselves, miss them and they disappear as soon as you get the nearby suit upgrade never to appear again, making it impossible to fill your logbook completely. Thankfully, the PAL version fixes this so they do respawn and no longer arbitrarily disappear from the game if you miss them.
  • There's also Ice Parasites that only appear in two rooms and disappear from the game, there are several other one-time scans in this series too, but luckily they're not quite as easy to miss as the Ice Shriekbats (for one, they don't fly at you and explode on your face as soon as you get close).
  • The Aqua Drones are only found in Biohazard Containment in the Crashed Frigate. Once Samus leaves the room for the first time, they never appear again.
  • Ram War Wasps are only spawned by the Hive Mecha mini-boss. Once it is defeated, they are never seen again. Ditto the Barbed War Wasps in the Incinerator Drone chamber.
  • Plated Puffers, which are identical to normal Puffers except for their armor that deflects energy weapons, are only encountered in the Tower of Light, spawning when each tier of Brinstone columns is destroyed and never again.
  • The Cloaked Sentry Drone in the Phazon Mines is the only one of its kind. Due to its Invisibility Cloak, it cannot be scanned and therefore does not have an entry in the Monster Compendium.
  • The Phazon Elite highly resembles the usual Elite Pirates, has a similar moveset, and even uses the same encounter music, meaning one can quite easily miss its scan.
  • Invisible Pulse Bombus only appear in two corridors of the Phazon Mines, and like the Cloaked Drone, are unscannable.
  • Plasma Troopers are only encountered shortly before and during the Omega Pirate boss fight.
• Metroid Prime 2: Echoes:
  • Lightbringers, which are living, walking safe zones that crawl on walls. Interesting game mechanic that could have been used in a lot of places... but no, you only got to see three of them in a room near the beginning of the game, and they're gone when you come back later.
  • There are two kinds of Ing barriers that hardly appear at all, but still count towards 100% Logbook, so don't forget to scan them when you can.
    • One is the Ing Webtrap. They are only found once in the Dark Agon Wastes, blocking all the doors of the Battleground while Samus fights a horde of Warrior Ing. They disappear afterwards, but most players will be too focused on the fight to notice.
    • The other is the Webling, the dark version of the big Luminoth webbings. They are only found in the Feeding Pit Access in the Dark Agon Wastes, and must be killed with the Light Beam.
  • Because the Dark Sporb enemy was Dummied Out, technically the only time a Sporb is possessed by an Ing is the Power Bomb Guardian fight.
• Metroid Prime 3: Corruption:
  • The fast and incredibly hard to scan Gel Ray found in pools of Fuel Gel on Bryyo.
  • The Fargul Hatcher and its Fargul Wasps only appear in the Hall of Golems on Bryyo. They respawn freely, so come by any time you like to see you one.
  • Since your time spent on Phaaze is limited, there are many unique lifeforms that you can breeze past if you're in too much of a hurry. These include the Maw, the EyeballBlocker, the Aazelion, and more.
  • There's a bonus enemy called the "Armored Pirate" that only appears on Elysia in the NTSC version of the game (meaning it isn't in the Trilogy). It appears to have been added by mistake, as it's physically identical to the Armored Pirate Militia and doesn't appear in the Logbook if you scan it. It's possible to get an unnatural 109 Red Credits due to this enemy.
• Giant aquatic Omnithons can be seen throughout the background in lower Burenia in Metroid Dread, but only one can actually interact with Samus at the bottom of the seafloor.

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