Thetis

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Walkthrough

Quotes

Boss Info

Artwork from Mega Man ZX Advent.
Dialogue portrait(s).
General information
Name(s):	Thetis, Tethys
Title(s):	Ice Mega Man
Group(s):	Mega Men
Appearances:	Mega Man ZX Advent
Game Info
Element:	Ice
Weakness:	Fire
Reward(s):	A-Trans: Thetis
Stage(s):	Highway
Voiced By:	Hisayoshi Suganuma (JP) Dillon Font (EN)

Thetis, known as Tethys (テティス) in Japan, is an antagonist in Mega Man ZX Advent. He is the Biomatch for Model L, and one of four rival Mega Man seeking to awaken Model W and win the Game of Destiny. He plans to use Model W to destroy humanity and restore the world's nature.

In the Games

Mega Man ZX Advent

Sprite from Mega Man ZX Advent.

Thetis debuts in Mega Man ZX Advent. His backstory is left a mystery, but he loves swimming and has a deep connection to oceans and wildlife. When he was approached by Prometheus and Pandora, he accepted Model L and joined the Game of Destiny to eradicate humanity for its pollution and restore the planet to its natural state.

Thetis first appears alongside Atlas in the Arctic Ice Floe, where they face Grey/Ashe after hearing about them from Prometheus. Thetis Megamerges with Model L but claims he doesn't want to fight right now, letting Atlas shatter the ice before they depart.

Thetis is next found in the Highway, where he defends the Model W core responsible for flooding the city with ice water. He shows Grey/Ashe the extent of humanity's pollution and challenges them, leading to a boss battle. Upon his defeat, he retreats and takes the Model W core with him. Grey/Ashe then absorbs Thetis' DNA data for A-Trans, which also unlocks a Model A cipher that reveals the roles of Prometheus and Pandora in the Game of Destiny.

After the Pseudoroid boss attack in Ouroboros, Thetis returns alongside the other Mega Men to defend Albert. Vent/Aile keeps them busy, allowing Grey/Ashe to face Albert alone. Once Grey/Ashe destroys Albert and triggers the collapse of Ouroboros, Model Z immobilizes Thetis via Model L, allowing Vent/Aile to escape with the unconscious Grey/Ashe. Thetis disappears in the collapse with the other Mega Men.

In the bonus Extreme mode ending, Thetis is summoned to serve Master Thomas alongside the other three Mega Men. The significance of this is left a mystery due to the cliffhanger ending of the ZX era.

Other Media

• In the Rockman ZX Advent manga, Thetis appears in the final issue with the other Mega Men as the Game of Destiny begins.

Official Data

Mega Man ZX Advent manual	"Let me show you something!" Model L's Biomatch. This gentle youth loves swimming and the sea. He is growing to despise humanity for its reckless disregard for the environment in the name of progress.
Rockman ZX Series Official Blog	The Biometal Model L Biomatch, who transforms into the Ice Mega Man. A kind-looking boy who is a model-citizen that loves swimming. He hoped that the sea, which had been polluted by the past war, would become peaceful and clean, but the industrial development of every country is polluting it again. He despises the current actions of humanity.[JP]
Rockman ZX Advent Official Complete Guide	The Model L Biomatch, who transforms into the Ice Mega Man. Slightly younger than the other Mega Men, he is a kind-hearted model-citizen, but has a sarcastic side to him. He thought that the seas, which were polluted by war, would become clean with peace, but he is angry that that they are becoming polluted again by the development of various countries. He is trying to awaken Model W to destroy those who continue to pollute.[JP]

Database

	B12 Thetis
	Model L Biomatch (Ice Mega Man). At a glance, he's an upstanding, kind, model-citizen. But, there's a nasty side to him too. He intends to punish people for polluting the sea with waste.

Gallery

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  Artwork from Mega Man ZX Advent.

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  Artwork from Mega Man ZX Advent.

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  Artwork from Mega Man ZX Advent.

• MMZXA - Thetis Concept.png

  Concept art for Mega Man ZX Advent.

• MMZXA - Thetis Model L Concept.png

  Concept art for Mega Man ZX Advent.

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  Cutscene art from Mega Man ZX Advent.

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  Cutscene art from Mega Man ZX Advent.

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  Sprite from Mega Man ZX Advent.

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  Sprite from Mega Man ZX Advent.

• RMZXA Manga - Mega Men Panel.png

  Panel from the Rockman ZX Advent manga.

Behind the Scenes

Nomenclature

Language	Name	Origin
Japanese	Tethys (テティス)	Tethys is one of the moons of the planet Saturn, a theme shared among the rival Mega Men. This moon is named after a Greek Titan, Tethys, who is the mother of the river gods and the Oceanids.
English	Thetis	Thetis is a Greek mythological figure, often depicted as a sea nymph or water goddess.