List of creatures in Metroid II: Return of Samus

This is a list of creatures that appear in Metroid II: Return of Samus.

Arachnus
Arachnus is an animal originating from the planet SR-388. The biped is distinguished by its four toothed maw, segmented eyes, elongated neck, the hard shell on its back, and the large claws on its fore-arms. It is known to curl into an armored ball when threatened, and only periodically emerges from the ball in order to attack with either its claws, or by spitting fire from its mouth.

Arachnus made its first appearance in Metroid II: Return of Samus, inside the second Chozo ruin that is discovered in the game. Here it disguised itself as one of the classic item balls held by the Chozo statues. Defeating it yields access to the Chozo statue that holds the Spring Ball.

Arachnus' 2nd appearance is as the first boss of Metroid Fusion. Its attack pattern includes curling up into a ball. Because of this, it carries the Morph Ball upgrade, which is absorbed by Samus when the core is destroyed. This version of Arachnus is only an X Parasite clone, not the original one from SR388. Its attacks include a flamethrower and sonic energy waves.

Arachnus is also known by the name "Mulcalah", most notably in the Metroid Fusion soundtrack.

Autoad
The Autoad is a jumping toadlike robot built by an ancient civilization. It is programmed to stop intruders.

Autom
An indestructible defense mechanism that flies horizontally. This creature activates a flamethrower when Samus comes near.

Autrack
Autrack is a robot from Metroid II: Return of Samus which travels along a track.

The Autrack can be found in numerous Chozo structures on the planet SR-388, where it acts as a point defense turret. The autrack is typically found hidden behind a wall or small structure, where it is protected when not firing. When it detects an intruder, its track arm extends, and the cannon fires, once it has fired, the arm retracts while the weapon reloads for another shot.

Blob Thrower
This plant creature is found on Planet SR388. It comes out of the ground and spits out little blobs that hover around, and then it retracts back into the ground. Killing the blobs is a good way to refill Samus' health and ammo.

Chute Leech
The Chute Leech is seen in Metroid II: Return of Samus, Super Metroid and as an X Parasite clone in Metroid Fusion, being found on both SR388 and Zebes. It has a flat body, and its attack is to jump up into the air, and then glide down with its parachute like body. The variant on Zebes has rows of teeth visible on its underside. They are more a nuissance than a serious threat. The X Parasite variant can release acid.

Drivel
Gigantic bats that live in dark places. When Samus comes close, the Drivel dives toward her.

Gravitt
This crustaceous creature hides in the floor, only coming out to attack when Samus comes close. When hidden, only the spike on top can be seen and sometimes they are concealed under destroyable blocks so even this is hidden. Appears in Metroid II: Return of Samus.

Gullugg
Gulluggs have long, needle-like noses and fly around in circles. They are found on Planet SR388. They frequently yield missiles when killed. They look remarkably like mosquito heads.

Gunzoo
This mechanical defence mechanism attacks any intruder with 4 guns on its belly. It is impervious to Samus' weapons because of its hard plating.

Hornoad
Hornoads resemble frogs and hop around as such. Their name is a portmanteau of horn and toad. They frequently yield missiles when killed. They are only found in Metroid II, and in Metroid Fusion in the form of X-Parasite copies. In Metroid Fusion, a Hornoad infects Samus with the X-Parasite. Curiously enough, Hornoads are one of the only creature in Metroid Fusion that has a non-infected state: it is generally hard to see due to coloring, but green versions of Hornoads wait in the areas that Hornoads appear as enemies, and transform into the red version once possessed with an X-Parasite. However, they are untouchable until infected, merely acting as background.

Moheek
Moheeks look like fish with tendrils coming out of their heads. They move slowly on the walls of the acid areas on Planet SR388. Although they are not aggressive, they do a relatively high amount of damage if Samus touches them.

Proboscum
The Proboscum is a harmless, invulnerable robotic drone found on SR388. There is much speculation over its original purpose, as it is typically found malfunctioning and clamped onto a vertical wall, where its swivelling arm can be used as a platform.

Septogg
Septoggs are found on Planet SR388. They hover in one place and do no damage to Samus, so she can use them as platforms. However, their tiny wings can't support her weight, so standing on them causes them to descend quickly.

Wallfire
This immobile sentry is mounted on walls in the ruins of SR388, and becomes active only when an unrecognized lifeform enters range. The Wallfire is capable of projecting fireballs towards any threats, which can be frozen with the Ice Beam. They are also capable of regenerating damage if no threats are nearby.