200B (Core - BP) -> 400 (Ultra - BP/AA) -> 600B (Ultra - AA)
Hydorous (Japanese version: Hydros (ハイドロス) is a lion-like , Haidorosu ) ? Bakugan that appears in . He is the Bakugan Battle Planet Guardian Bakugan of Shun Kazami. A Darkus Hydorous appeared, controlled by Shun's doppelganger.
Fast, agile, & 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 complement one another in battle & life.
In battle planet, there is an episode focusing on shun and hydorous, later unlocking hyper hydorous in the episode
200B (Core - BP), 400B (Ultra - BP), 400B (Core - AA), 600B (Ultra - AA)
300B (Ultra - AA), 400B (Core - BP), 500B (Core - AA) 500B (Ultra - AA)
400B (Core- AA), 500B (Core - BP/Ultra - AA)
300B (Core - BP), 400B (Core - AA), 600 (Ultra - AA), 800B (Core - BP)
200B (Core - BP), 200B (Ultra - BP), 300B (Core - AA), 500B (Core - AA)
200B (Ultra - BP), 400B (Core - BP), 600B (Ultra - AA), 800B (Core - BP)
1000B (Core - BP), 1500B (Ultra - BP)
Aquos Hurricane: Hydorous spins forming a water like tornado, inflicting damage to anyone nearby.
Claw Cutter: Hydorous cuts his opponent using his claws, it is seen to be used more than once is some episodes
Mysterious Mist: Hydorous forms a mist in his surroundings, giving him a better oppotunity to strike at his opponent.
Aquos Smash: Hydro Burst:
It remains unknown if Hydorous will return in Bakugan: Geogan Rising.