Changes

|-|BP Core=[[File:Aquos Hydorous (openOpen).png|250px]]|-|BP Ultra=[[File:Aquos Hydorous Ultra (openOpen).png|250px]]

|-|AA Core=[[File:Aquos Hydorous BAA (openOpen).png|250px]]|-|AA Ultra=[[File:Aquos Hydorous Ultra BAA (openOpen).png|250px]]

|voiced by = [https://www.imdb.com/name/nm5673777/?ref_=ttfc_fc_cl_t9 Scott Law](ENG)<br/>Aoi Ichikawa (JP)

{{Nihongo|'''[[Hydorous'''(Shun Kazami)|ハイドロス|Haidorosu}} is a lion-like [[BakuganAn Aquos variant]] that appears in ''[[Bakugan Battle Planet]]''. He is the current [[Partner Bakugan]] of anime as [[Shun Kazami (RebootGeneration 2)|Shun Kazami's]] [[Partner Bakugan]]for most of the series, with the exception of being replaced by [[Sharktar]] in ''[[Bakugan: Geogan Rising|Geogan Rising]]'' until the latter became the guardian of both the Aquos Crystal and Aquos Artifact before Hydorous awakened from hibernation and returned to Shun in '', where he is temporarily replaced by [[Bakugan: Evolutions|EvolutionsSharktar]]''. A [[Darkus#Reboot|Darkus]] variant also appears in ''[[Outer Demons]]'', controlled by [[Shun's Doppelganger]].

Fast, agile and ruthless in battle, the overtly-aggressive Hydorous is the prince of the seas. Though his style is a complete 180 from Shun's thoughtful manner, the two compliment one another in battle and life.<refname="bakulog">[https://web.archive.org/web/20220127211045/https://bakugan.com/en/bakulogBakugan.com Bakulog]</ref>

[[Shun Kazami (RebootGeneration 2)|Shun Kazami]] presumably met Hydorous at an unknown time before Shun left Japan to join [[The Awesome Ones]]. Hydorous is seen with Shun as he discovers the [[Awesome Ones]]' videos.<ref>''[[Origin of Species Part 2]]''</ref>

In ''[[Battle for the Joystick]]'', Hydorous and [[Dragonoid (RebootGeneration 2)|Drago]] get into a heated conflict over who gets to play on a game controller first. After a fierce Bakugan Brawl, Hydorous and Drago reconcile, only to realize they have destroyed the controller during the brawl.<ref>''[[Battle for the Joystick]]''</ref>

===''Evolutions''=Physical Game=={{BBP Bakugan Infobox|name = Hydorous Strength Mode|image = [[File:???.png|250px]]|attribute = Aquos|power = 700|Between the first = [[A Superstar Returns?!]]}}'''two years, Core Hydorous Strength Mode''' is the Elemental Evolved Form of exists in all Factions while Hydorous Ultra exists in ''Bakugan: Evolutions''all Factions except for Ventus. He is represented in the Physical Game as an unnamed mold.{{-}}

==Physical Game==Between both years, Core Hydorous exists in all Factions while Hydorous Ultra exists in all Factions except for Ventuswas not present during ''Bakugan: Geogan Rising''.

[[Epic Character Card]]s are alternate versions of [[Character Card (RebootGeneration 2)|Character Cards]] that are included randomly in [[Fusion Force]] and [[Shields of Vestroia]] card [[Booster Pack]]s.