Dr. Dahm, known as Dr. Zero in Japan, is an antagonist from Streets of Rage 3. He is a mad scientist working for the Syndicate Crime Organization.
Overview[]
While in the Japanese version of the game he doesn't play much of a role, only showing up before the final boss and never being mentioned, in the American version his role is greatly expanded, being responsible for creating all of the robot clones being used by the Syndicate. In the American ending it is also revealed he was apprehended by the police and sent to an asylum.
While he isn't confronted directly, the player must fight a mechanical arm controlled by him as a miniboss. It is fought over a moving conveyor belt which pulls the player into a electrified field on the back, forcing the player to move down constantly while avoiding the arm's attacks and hitting it as well.
Strategy[]
Dr. Zahm's mech-arm is fundamentally an easy boss to deal with. It will hover over the player and quickly dive to attack, but it'll clench its tweezers before diving. The player can simply dodge it and use jump attacks or Blitz Attacks. Once the arm is at around 10% to 5% health, the tweezers will break, revealing an electric field which will damage the player on contact; once the arm dives down again, the player must avoid it for around 7 seconds, until it stops and the electricity temporarily fades, allowing it to be attacked.