Sirius was an unused colossi that was removed from the final version of the game. It is one of two unused colossi, the other being Monkey, that does not have a fan-given name and is therefore simply called Sirius, as the designers nicknamed it. It was cut from the game "as the way to defeat it just wasn't working out".


Sirius was a relatively small colossus, about the same size as Celosia and Cenobia (though a little taller than both), resembling a giant boar or hog. Unlike these colossi, Sirius had relatively little body armor and an exposed back with fur on it. This indicates that its weak spot was constantly exposed during the battle.


Sirius was, also similar to Celosia and Cenobia, very fast and - possibly - very aggressive. It had to be defeated while riding Agro, as it would chase the player at high speed. Because it had virtually no body armor, the main obstacle of fighting this colossus was not removing it, but simply getting on its back.


The monument needed to defeat Sirius.

The artbook gives a clue about how Sirius had to be defeated, as it says that "rocks meant to be used in the fight with Sirius", with a picture of a Stonehenge-like monument. It can be assumed that Sirius would chase Wander while on horseback, and the player had to ride through this monument. As a result, Sirius would get stuck and the player could stab its major sigil(s). This monument can still be found in the released version of the game, at quadrant G7; thus, it can be assumed that that's the location Sirius was fought.


The Game Shadow of the Colossus ( Demo  · Pal Release  · Shadow of the Colossus HD  · PS4)
Characters Wander  · Agro  · Mono  · Dormin  · Emon
The Colossi I  · II  · III  · IV  · V · VI  · VII  · VIII  · IX  · X  · XI  · XII  · XIII  · XIV  · XV  · XVI
Unused Colossi ( Devil  · Griffin  · Monkey  · Phoenix  · Roc  · Sirius  · Spider  · Worm )
Magic Sigil  · Hard Mode
The Forbidden Lands Shadow creaturesSave shrinesFruit treesWhite-tailed lizards

The Shrine of Worship
Umbral GladeStone Arch GorgeDried MarshNorthern SpanDesert FortressMisty FallsRavine EntranceHalf-moon CanyonWestern PlainRound Stone HillLair to the WestStone Bridge CliffCliff PathLair on the MesaWestern CapeArch Bridge PlainBlasted LandsAutumn ForestEastern BluffValley PlainSouthwestern CapeSouthern PlainGreen CapeThe Broken Seal

Soundtrack Roar of the Earth
Walkthrough Time AttackGolden Coins
Other media Nico  · Official artbook/guidebook  · Collectible figurines  · Film adaptation
Giantology campaign
Hoaxes Jebal-Barez skeletonTamil Nadu tsunami giantSulu Sea eel statuePolarneft conspiracySayre family vacation
Characters Eric BelsonCasper ShillingEd GuylerArkady SimkinBoris AtlasovAndrew and Ellie Sayre
Media Giantology podcasts (FirstInterview with Arkady SimkinThirdFourth) • IPICP memo
SotC Template CoverLogov2 Walkthrough
Characters Wander  · Mono  · Agro  · Dormin  · Lord Emon  · Shadow Creatures
Colossi I  · II  · III  · IV  · V · VI  · VII  · VIII  · IX  · X  · XI  · XII  · XIII  · XIV  · XV  · XVI
Locations The Forbidden Lands  · Shrine of Worship
Main Items Power-ups (Lizards · Fruit) · Weapons (Ancient Sword · Sword of the Sun · Queen’s Sword · Sword of Dormin · Bow & Arrow · Ancient Bow · Harpoon of Thunder · Life Sword) · Collectibles (Relics)
Gameplay Hard Mode  · Save shrines  · Time Attack  · Reminiscence Mode  · Watermellon  · Barrel
Media Roar of the Earth (OST)  · Official Art and Guide Book  · Nico Bonus DVD  · Film
Releases Demo  · PS2 original  · PS3 remaster  · PS4 remake  · Credits
Community content is available under CC-BY-SA unless otherwise noted.