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]]

|attribute = Aquos|attvariations = {{attribute|Darkus2|size=15px}}|power = 600<br/>500

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

{{Nihongo|'''Hydorous'''|ハイドロス|Haidorosu}} is a lion-like [[Bakugan]] that appears from the reboot series, debuting in ''[[Bakugan Battle Planet]]''. He is the  [[Guardian BakuganHydorous (Shun Kazami)|An Aquos variant]] of appears in the anime as [[Shun Kazami (RebootGeneration 2)|Shun Kazami's]]. Hydorous is a noble and fierce [[Partner Bakugan compared to his partner]] for most of the series, who with the exception of ''[[Geogan Rising]]'', where he is timid and shy in front of camerastemporarily replaced by [[Sharktar]]. A [[Darkus (#Reboot)|Darkus]] Hydorous 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> 

Between both the first two years, Core Hydorous exists in all Factions while Hydorous Ultra exists in all Factions except for Ventus. Hydorous was not present during ''Bakugan: Geogan Rising''.

{| border="1" cellspacing="1" cellpadding="1"! scope="col" colspan="7"|Hydorous Evos|-!Evo Card!Name!Faction!Energy Cost!B-Power!Damage Rating!Evolves From|-|[[File:Hyper Hydorous (Pyrus Card) ENG 261 SR BB.png|125px]]|[[Pyrus Hyper Hydorous (Battle Brawlers)|Pyrus Hyper Hydorous]]|{{Attribute|Pyrus2}}|3 {{Energy}}|{{Power}}800|4 {{Damage}}|Evolved from [[Pyrus Hydorous (Battle Brawlers)|Pyrus Hydorous]]|-|[[File:Hyper Hydorous (Aquos Card) ENG 221 RA BB.png|125px]]|[[Aquos Hyper Hydorous (Battle Brawlers)|Aquos Hyper Hydorous]]|{{Attribute|Aquos2}}|3 {{Energy}}|{{Power}}500|10 {{Damage}}|Evolved from [[Aquos Hydorous (Battle Brawlers)|Aquos Hydorous]]|-|[[File:Hydorous (Diamond Card) ENG 216 RA BB.png|125px]]|[[Diamond Hydorous (Battle Brawlers)|Diamond Hydorous]]|{{Attribute|Diamond}}/{{Attribute|Aquos2}}|5 {{Energy}}|{{Power}}1000|10 {{Damage}}|Evolved from [[Aquos Hydorous (Battle Brawlers)|Aquos Hydorous]]|-|[[File:Hyper Hydorous (Haos Card) ENG 125 CO BR.png|125px]]|[[Haos Hyper Hydorous (Bakugan Resurgence)|Haos Hyper Hydorous]]|{{Attribute|Haos2}}|3 {{Energy}}|{{Power}}600|6 {{Damage}}|Evolved from [[Haos Hydorous (Battle Brawlers)|Haos Hydorous]]|-|[[File:Hyper Hydorous (Darkus Card) ENG 241 RA BB.png|125px]]|[[Darkus Hyper Hydorous (Battle Brawlers)|Darkus Hyper Hydorous]]|{{Attribute|Darkus2}}|3 {{Energy}}|{{Power}}400|9 {{Damage}}|[[Darkus Hydorous (Battle Brawlers)|Darkus Hydorous]]|-|[[File:Titan Hydorous (Aurelus Card) ENG 236 BE BB.png|125px]]|[[Aurelus Titan Hydorous (Battle Brawlers)|Aurelus Titan Hydorous]]|{{Attribute|Aurelus}}|6 {{Energy}}|{{Power}}1000|3 {{Damage}BPHydorousEvolog}|Evolved from [[Aurelus Hydorous (Battle Brawlers)|Aurelus Hydorous]]|}

{| border="1" cellspacing="1" cellpadding="1"! scope="col" colspan="7"|Hydorous Ultra Evos|-!Evo Card!Name!Faction!Energy Cost!B-Power!Damage Rating!Evolves From|-|[[File:Hyper Hydorous Ultra (Pyrus Card) ENG 262 RA BB.png|125px]]|[[Pyrus Hyper Hydorous Ultra (Battle Brawlers)|Pyrus Hyper Hydorous Ultra]]|{{Attribute|Pyrus2BPHydorousUltraEvolog}}|2 {{Energy}}</tabber>|{{Power}}600|6 {{Damage}}===Takara Tomy===|Evolved from [[Pyrus Hydorous Ultra (Battle Brawlers)|Pyrus Hydorous Ultra]]====Bakulog====|-<tabber>|[[File:Titan Hydorous Ultra (Pyrus Card) ENG 269 AR BB.png|125px]]|[[Pyrus Titan Hydorous Ultra (Battle Brawlers)|Pyrus Titan Hydorous Ultra]]|{{Attribute|Pyrus2}}|6 {{Energy}}Core Version=|{{PowerTTHydorousBakulog}}700|7 {{Damage}}|Evolved from [[Pyrus Hydorous Ultra (Battle Brawlers)|Pyrus Hydorous Ultra]]|-|[[File:Hyper Hydorous Ultra (Aquos Card) ENG 222 AR BB.png|125px]]|[[Aquos Hyper Hydorous Ultra (Battle Brawlers)|Aquos Hyper Hydorous Ultra]]|{{Attribute|Aquos2}}Version=|3 {{EnergyTTHydorousUltraBakulog}}|{{Power}}700|5 {{Damage}}|Evolved from [[Aquos Hydorous Ultra (Battle Brawlers)|Aquos Hydorous Ultra]]|-|[[File:Maximus Hydorous Ultra (Aquos Card) ENG 226 BE BB.png|125px]]|[[Aquos Maximus Hydorous Ultra (Battle Brawlers)|Aquos Maximus Hydorous Ultra]]|{{Attribute|Aquos2}}|8 {{Energy}}|{{Power}}1400|6 {{Damage}}|Evolved from [[Aquos Hydorous Ultra (Battle Brawlers)|Aquos Hydorous Ultra]]|-|[[File:Hydorous Ultra (Diamond Card) ENG 217 RA BB.png|125px]]|[[Diamond Hydorous Ultra (Battle Brawlers)|Diamond Hydorous Ultra]]|{{Attribute|Diamond}}</{{Attribute|Aquos2}}tabber>|9 {{Energy}}|{{Power}}1500====Evos====|8 {{Damage}}<tabber>|Evolved from [[Aquos Hydorous Ultra (Battle Brawlers)|Aquos Hydorous Ultra]]|-|[[File:Hyper Hydorous Ultra (Haos Card) ENG 253 RA BB.png|125px]]Core Version=|[[Haos Hyper Hydorous Ultra (Battle Brawlers)|Haos Hyper Hydorous Ultra]]|{{Attribute|Haos2}}|2 {{Energy}}|{{Power}}500|6 {{DamageTTHydorousEvolog}}|Evolved from [[Haos Hydorous Ultra (Battle Brawlers)|Haos Hydorous Ultra]]|-|[[File:Maximus Hydorous Ultra (Haos Card) ENG 255 BE BB.png|125px]]|[[Haos Maximus Hydorous Ultra (Battle Brawlers)|Haos Maximus Hydorous Ultra]]|{{Attribute|Haos2}}|7 {{Energy}}|{{Power}}1000Version=|8 {{DamageTTHydorousUltraEvolog}}|[[Haos Hydorous Ultra (Battle Brawlers)|Haos Hydorous Ultra]]|-|[[File:Hyper Hydorous Ultra (Darkus Card) ENG 242 AR BB.png|125px]]|[[Darkus Hyper Hydorous Ultra (Battle Brawlers)|Darkus Hyper Hydorous Ultra]]|{{Attribute|Darkus2}}|3 {{Energy}}|{{Power}}1000|3 {{Damage}}|Evolved from [[Darkus Hydorous Ultra (Battle Brawlers)|Darkus Hydorous Ultra]]|-|[[File:Hyper Hydorous Ultra (Aurelus Card) ENG 98 RA BR.png|125px]]|[[Aurelus Hyper Hydorous Ultra (Bakugan Resurgence)|Aurelus Hyper Hydorous Ultra]]|{{Attribute|Aurelus}}|1 {{Energy}}|{{Power}}800|6 {{Damage}}|Evolved from [[Aurelus Hydorous Ultra (Battle Brawlers)|Aurelus Hydorous Ultra]]|}

{| border="1" cellspacing="1" cellpadding="1"! scope="col" colspan="8"|Hydorous Bakulog|-!Evo Card!Name!Faction!Set!Energy Cost!B-Power!Damage Rating!Evolves From|-|[[File:Maximus Hydorous (Aurelus Card) ENG 126 SR AV.png|125px]]|[[Aurelus Maximus Hydorous (Armored Elite)|Aurelus Maximus Hydorous]]|{{Attribute|Aurelus}}|[[Armored Elite]]|8 {{Energy}}|{{Power}}1000|10 {{Damage}AAHydorousEvolog}|Evolved from [[Aurelus Hydorous (Armored Elite)|Aurelus Hydorous]]|}

{| border="1" cellspacing="1" cellpadding="1"! scope="col" colspan="8"|Hydorous Ultra Evos|-!Evo Card!Name!Faction!Set!Energy Cost!B-Power!Damage Rating!Evolves From|-|[[File:Hyper Hydorous Ultra (Pyrus Card) ENG 145 SR AV.png|125px]]|[[Pyrus Hyper Hydorous Ultra (Armored Elite)|Pyrus Hyper Hydorous Ultra]]|{{Attribute|Pyrus2}}|[[Armored Elite]]|2 {{Energy}}|{{Power}}700|4 {{Damage}}|Evolved from [[Pyrus Hydorous Ultra (Armored Elite)|Pyrus Hydorous Ultra]]|-|[[File:Hyper Hydorous Ultra (Darkus Card) ENG 133 RA AV.png|125px]]|[[Darkus Hyper Hydorous Ultra (Armored Elite)|Darkus Hyper Hydorous Ultra]]|{{Attribute|Darkus2}}|[[Armored Elite]]|3 {{Energy}}|{{Power}}700|7 {{Damage}AAHydorousUltraEvolog}|Evolved from [[Darkus Hydorous Ultra (Armored Elite)|Darkus Hydorous Ultra]]|}

[[Aquos (#Reboot)|Aquos]] Hydorous appears in [[Bakugan: Champions of Vestroia]] as one of five Bakugan the player can choose from during the quest [[What in the World?]].