The Brainwalker is a large walking turret, a complete weapon system designed by Professor Schlange as part of the "ZAIN Project v2", created in his pursuit of the "perfect" warrior. As an upgrade of the project's initial version, the Brainwalker's decision-making is driven internally by using a human brain, harvested from the citizens captured while attempting to escape Kazakh City. As the brain loses the person's sense of "purpose", the Brainwalker is forced into fighting out of pure instincts. The end result is a four-legged cybernetic organism with a large brain and a singular focus on offense.
Besides serving as the Brainwalker's central judgement system, the brain core is capable of pushing the machine's performance to its very limit by drawing out the hidden potential inherent in the biological brain. However, since this enhancing process puts a lot of stress in the organic parts, the brain component must be replaced on a regular basis. As an initial success in his personal project, Schlange shows great admiration over his creation, referring to the Brainwalker as both "beautiful" and "magnificient".
Hiryu faces five of this bio-organical weapons within the Research Facility, two sent by Schlange specifically to stop Hiryu. The Brainwalker is incredible fast and nimble, moving across the room with its spider legs and attacking Hiryu by quickly ramming him with its armored body. The Brainwalker is also equipped with long-range weaponry, including a giant laser beam and smaller homing lasers.
The Brainwalkers are tricky enemies to fight due to its speed and variety of attacks, but they can be easily distracted by moving back and forth while attacking, forcing the robot to constantly turn around before attempting any attack of its own. It is also weaker to the Explosive Cypher upgrade.
A slightly updated version is later found inside the Airship Balrog and Meio's Tower. This version comes equipped with liquid nitro canisters it can throw like missiles at Hiryu, freezing him in place if they connect. When facing two Brainwalkers, this can lead to a situation in which Hiryu is hopelessly frozen in place by a shower of projectiles, so it's best to close in on a single Brainwalker and quickly destroy it first.
- Ram: The Brainwalker rushes forward and strikes Hiryu with its body. Done when Hiryu stands close to it for too long.
- Stomp: The Brainwalker raises its body and then slams the ground below it. Used when Hiryu stands or moves between its legs.
- Up Strike: Similar to the Stomp, only the Brainwalker lunges upwards with its whole body to strike. Its used to throw Hiryu if he's standing atop it.
- Laser Beam: The Brainwalker shoots three laser beams from its front piece. These lasers travel upward, then stop and change directions toward Hiryu.
- Giant Laser: The Brainwalker shoots a large laser beam forward. Can be avoided with the Slide Assault.
- Nitrogen Canisters: Exclusive of the second version. The Brainwalker shoots four/five canisters from a pod installed in its rear, which fly like missiles aiming at Hiryu. If he's hit, he's temporarily frozen in place and open to attack. Very difficult to evade effectively.
- Nitrogen Mine: Also exclusive of the second version. The Brainwaker drops a mine below it, which explodes on contact or after a short time. If caught in the blast, Hiryu is frozen and stunned.
- ↑ 1.0 1.1 1.2 Capcom (February 2014, multi). Strider (English). Character Intel #30: Brainwalker - ZAIN Project v2
- ↑ Capcom (February 2014, multi). Strider Hiryu (Japanese). Story Intel #30: Kazkah City Citizens
- ↑ Capcom (2013). "Character: Brainwalker". Capcom's official Strider site (Japanese). Retrieved January 24, 2015.
- ↑ Capcom (February 2014, multi). Strider Hiryu (Japanese). Character Intel #30: Brainwalker