Editing Arachnus

{{Boss-infobox
|image=[[File:Arachnus mf Artwork.png|A very menacing Arachnus]]
|caption=A menacing Arachnus from ''[[Metroid Fusion|Fusion]]''
|games=*''[[Metroid II: Return of Samus]]''
*''[[Metroid Fusion]]''
|attacks=*Fireballs
*Ramming
*Energy Waves <small>(''Fusion'' only)</small>
|weaknesses=*[[Morph Ball Bomb|Bombs]] <small>(''Metroid II'' only)</small>
*[[Missile]]s <small>(''Fusion'' only)</small>
|vulnerableareas=Chest <small>(''Fusion'' only)</small>
|location=[[Main Deck]]
|rewards=*[[Spring Ball]]<small> (''Metroid II'')</small>
*[[Morph Ball]]<small> (''Fusion'')</small>
}}

'''Arachnus''' are armadillo-like creatures found on [[SR388]]. They appear on SR388 in ''[[Metroid II: Return of Samus]]'' and appear in a mimicked form in ''[[Metroid Fusion]]''. Arachnus appear much less often than most other creatures on SR388. An [[X Parasite]] mimics an Arachnus aboard the [[Biologic Space Labs Research Station|B.S.L research station]]. They are capable of attacking by with fireballs and they can also ram their targets.

==Appearances==
===''Metroid II: Return of Samus''===
[[File:Arachnus m2 Artwork.gif|thumb|left|Arachnus from ''[[Metroid II: Return of Samus|Return of Samus]]'']]
In ''Metroid II'', [[Samus Aran|Samus]] battles an Arachnus on SR388 that was previously mimicking an [[Item Sphere]] on a [[Chozo Statue]]. After Samus shoots the Sphere, it starts bouncing around and attempts to hit her. On occasion, it will stop to shoot a fireball. Samus can only damage it by dropping [[Morph Ball Bomb]]s directly into its path, as any other attacks it will simply dodge. Once she defeats it, Samus acquires the [[Spring Ball]].

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===''Metroid Fusion''===
[[File:Arachnus mf Screenshot 1.jpg|left|thumb|Arachnus-X attacking [[Samus Aran|Samus]]]]
In ''Fusion'', Samus battles an X mimic of an Arachnus on the [[Main Deck]] of the B.S.L Research Station. This Arachnus, due to the nature of the X, is much more aggressive than the one seen on SR388's surface. Its basic fighting abilities are similar to the one Samus fought on SR388, but the X mimic has a variety of other abilities. From its claws, it can unleash a large wave of energy, and its fireballs detonate on the ground, creating a wave of flame in its wake. Samus can defeat it by firing at its exposed chest, but its shelled back is invulnerable.

Samus is rewarded with the [[Morph Ball]] upon absorbing its [[Core-X]]. Arachnus displays the abilities of the Morph Ball by rolling around in its shell to attack Samus during the battle.

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===''Metroid: Samus Returns''===
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[[File:Samus firing missile at Arachnus msr screenshot.png|left|thumb|Samus attacking Arachnus with a missile]]
Arachnus returns in ''Metroid II''{{'}}s remake, ''Samus Returns''. Like ''Fusion'', he is vulnerable to missiles hitting his front.
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==Manual==
{{Manual
|name=Arachnus
|game=m2
|entry=It will roll up its body like an armadillo, then rush at Samus.<ref>{{Cite manual|It will roll up its body like an armadillo, then rush at Samus.|Metroid II: Return of Samus|27}}</ref>
|order=top
|image=[[File:Arachnus m2 Manual Image.jpg|Arachnus]]
}}
{{Manual
|name=Arachnus
|game=fu
|entry=Native life-form of SR388. They will roll themselves into balls and attack. Dodge and attack with Missiles.<ref>{{Cite manual|Native life-form of SR388. They will roll themselves into balls and attack. Dodge and attack with missiles.|Metroid Fusion|38}}</ref>
|order=bottom
|image=[[File:Arachnus mf Manual Image.jpg|Arachnus]]
}}

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==Sprites==
{{sprite table
|m2=[[File:Arachnus m2 Sprite.png|Arachnus in Metroid II: Return of Samus]]
|mf=[[File:Arachnus mf Sprite.png|Arachnus in Metroid Fusion]]
|header2=Core-X
|m2 2=--
|mf 2=[[File:Arachnus Core-X Sprite.png|Arachnus's Core-X]]
|bottomright=mf 2
}}
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==Trivia==
[[File:Arachnus mf Screenshot 2.jpg|thumb|right|A beta image of ''[[Metroid Fusion]]'', showing some unused imagery]]
*Arachnus-X was seen in the first trailer for ''[[Metroid Fusion]]'', and was amongst the first enemies to be revealed from the game pre-release.
*In the official soundtrack of ''Metroid Fusion'', 'Arachnus-X's battle theme is referred to as ''VS. Mulcalah''. It is unknown why the name "Mulcalah" is used in this instance when all other media refers to the creature as "Arachnus-X".<ref>{{cite web |url=http://musicbrainz.org/show/release/?releaseid=150460 |title=Metroid Fusion OST |publisher=MusicBrainz |accessdate=2010-02-09 }}</ref>
*There is a beta image of Arachnus from ''Fusion'' showing it scream into the air, a function that was removed before the game's release. The image also shows other unused features, such as the color palette for the scene and Samus's health bar. 
*A remix of Arachnus-X's theme is used in ''[[Metroid Prime 3: Corruption]]'' during the boss battle with the [[Berserker Lord]]. Both bosses are the first in their respective games.
*The Arachnus boss in both games rewards Samus with a [[Morph Ball]]-related [[upgrade]]: the [[Spring Ball]] in ''Metroid II'', and  the[[Morph Ball]] in ''Fusion''.
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==Gallery==
===Video===
{{YouTube|amyq4FPl3XI|300|left|The Arachnus boss battle in ''[[Metroid Fusion]]''}}
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{{M2 Creatures-nav}}
[[Category:Metroid Fusion Bosses]]
[[Category:Main Deck Life Forms]]
[[Category:Metroid 2: Return of Samus Bosses]]
[[Category:Metroid: Samus Returns Bosses]]