The Aluminium Hydra (アルミーヒドラ) is an enemy machine from Strider 2, the final boss character in the second stage, Fortress Wahnen, alongside Herzog Schlange.

The Aluminium Hydra is one of the twisted creations of the mad scientist Herzog Schlange, and probably its greatest. Secured in the underground cavern beneath Fortress Wahnen, this giant creature stands in the center of a circular stone walkway in the midst of a lake, protected by a group of Light Armored Guards.

Hiryu confronts and destroys the Hydra during his infiltration of Fortress Wahnen.


Aluminium hydra
Hit Points: 24 HP (each head)
Score: 10.000 PTS

The Hydra is a giant machine with a small circular body, mostly submerged in water, and six long serpetine heads with unique forms that resemble different reptilian creatures. The creature is mostly autonomous, moving at the commands of its creator and lunging at Hiryu whenever he comes close to one of its heads.

All the heads twirl around until Hiryu approaches them, at which point one or two heads will quickly flash red, a sign they will actively attack him. Hiryu can attack the heads and destroy them after enough damage, though the battle will not end until Herzog Schlange is defeated. Destroying all heads before Schlange will cause his hover platform to malfunction and drift aimlessly, making him easier to hit.

The six head forms are the following:[1]

Hydra dragon Dragon Head (龍頭)
This head takes the form of a western dragon with a spiky bone collar and red eyes. It attacks with focused beams of plasma energy.
Hydra croc Crocodile Head (ワニ頭)
This head is shaped in the likeness of a crocodile, showing an elongated mouth with large, sharpened teeth and blue eyes. It doesn't use any long-range attack, instead swiping sideways at Hiryu whenever possible.
Hydra chameleon Chameleon Head (カメレオン頭)
A head with the distinctive form of a chameleon with big, green round eyes. It has a long prehensile tongue it uses to attack as well as the ability to camouflage itself.
Hydra snake Snake Head (ヘビ頭)
A small, snake-shaped head with dark blue eyes. It attacks by releasing a stream of fire from its mouth.
Hydra turtle Turtle Head (カメ頭)
A large, square-shaped head with yellow eyes. The weakest of the six heads, it has no unique attack form.
Hydra lizard Lizard Head (トカゲ頭)
A small head shaped in the form of a common lizard, with deep purple eyes. It can swipe at Hiryu rapidly and shoot large fireballs from its mouth.


  • Bite: An attack shared by all heads, a simple lunge forward in an attempt to bite Hiryu. After hitting a platform, the head will be stuck on the walkway and vulnerable for a few seconds.
  • Laser Beam: An attack from the Dragon Head. A beam of energy shot from the mouth that travels from left to right. It leaves a trail of energy that can also harm Hiryu if touched.
  • Swipe: An attack used by the Crocodile Head. A quick horizontal swipe in an attempt to bite Hiryu.
  • Fire Breath: Used by the Snake Head. A stream of fire released in three waves by strafing back and forth.
  • Tongue Lash: Used by the Chameleon Head. The head starts swinging left and right while camouflaged (it becomes transparent and difficult to discern) for a while before suddenly lashing out at Hiryu with its long tongue.
  • Chomp: Another attack from the Chameleon Head. While following Hiryu, the head does several small bites at his direction.
  • Triple Fireballs: Used by the Lizard Head. Shoots three fireballs from its mouth, which explode when they hit the ground. The first is aimed behind Hiryu, the second at his position and the last in front of him.
  • Triple Bite: Another attack of the Lizard Head. The head will lunge forward three times.

Design NotesEdit

The Aluminium Hydra is designed and inspired by the Japanese mythological 8-headed serpent known as "Yamata no Orochi", to the point it's actually given this name in concept sketches, albeit misspelled as "Yomata no Orochi" (ヨマタノオロチ).[1]



  • Depending on whether the player finishes the Hydra or Schlange first, the Hydra's defeat animation will be different: If Schlange is defeated first, all the Hydra heads will freeze in place and instantly fall apart into the lake; while destroying all heads before dealing with Schlange will instead show its body being engulfed by several explosions.


  1. 1.0 1.1 Capcom (February 22, 2014). Strider Hiryu Visual Chronicle (Japanese). Pg. 42