Helios

Helios is the guardian of Elysia's Leviathan. This mechanoid looks like a small round sphere with four tentacle-arm like appendages. He is the prime robot of a group of Swarmbots, also inhabiting the Leviathan. Helios has seven forms. All but the final form are invulnerable, and he only takes this form after being hit in his other forms many times.

Battle
The first form he appears in is his neutral form. He has a large sphere of Swarmbots surrounding him that act as a shield. He will just float in the middle of the arena. He may change into any of these:


 * Bowling Ball: After arranging the Swarmbots into a large sphere, he will fall to the ground and try to roll at Samus, who can strafe out of the way and fire at the core in between the Swarmbots.
 * Disc: He will arrange the Swarmbots into a large disc which has five weak points, which must be shot all at once with the Seeker Missiles. If he remains in this form for an extended period of time, the disc will increase in size, making it harder to dodge. The disc can also charge up and fire a large beam of Phazon.
 * Beam Array: He will arrange the Swarmbots into many small groups that will in turn charge up and fire at Samus. The glowing groups can be destroyed before they fire.
 * Tornado: He will arrange the Swarmbots into a large tornado with him at the base and start spinning toward Samus, sucking her towards it to deal contact damage. Morph Ball Bombs and the Hyper Ball can strike this form.
 * Humanoid: Helios will split the Swarmbots into four groups which will become "arms" and "legs". These will sometimes hurl giant orbs (that create a small, horizontal explosion) at Samus. The legs also can make a powerful shockwave. The joints at which the limbs are connected can only be damaged when the corresponding limb is preparing to attack; once Samus destroys each of these joints, Helios will collapse.
 * Exposed: Once he's been hit enough in the previous forms, he will open his core and dispel his Swarmbot backup. His mechanical arms will extend blades and he will charge repeatedly at Samus, who must go into Hyper Mode and fire her Hyper Beam into the front of his core to deal damage to the mechanoid.

He leaves the Hyper Missile upgrade behind after his demise.

Trivia

 * Interestingly, Helios' scan names him as a male despite being a mechanoid.
 * Since Helios is the commander of so many Swarmbots and seems to connect with them, it is possible Helios is either a corrupted Swarmbot or a corrupted version of a sort of Swarmbot commander, similar to the Steamlord in comparison to the Steambots.
 * He appears to be partially organic, as evidenced when damaged or at the beginning of the fight.
 * This is the music heard when battling Helios:.
 * It is possible that Helios was in fact an Elysian.
 * He can be easier to defeat than some bosses, as he stays completely still when exposing his weak point and effective use of Hypermode weaponry can quickly wear down his health and defeat him.
 * Ian Olsen modeled and skinned Helios.

Etymology
In Greek mythology the sun was personified as Helios (pronounced /ˈhiliˌɑs/) (Greek: Ἥλιος, Latinized as Helius). Homer often calls him simply Titan or Hyperion, while Hesiod (Theogony 371) and the Homeric Hymn separate him as a son of the Titans Hyperion and Theia (Hesiod) or Euryphaessa (Homeric Hymn) and brother of the goddesses Selene, the moon, and Eos, the dawn. The names of these three were also the common Greek words for sun, moon and dawn. The best known story involving Helios is that of his son Phaëton, who attempted to drive his father's chariot but lost control and set the earth on fire.