Bio Hazard is the first boss from Darius Force. It is shaped after a daphnia/water flea.
Bio Hazard will initially attack with a three-bullet spread from its arm. After the arm is destroyed it will spread bullets in a counterclockwise pattern and release bubbles which pursue the player but can be destroyed. After the large bubble protecting its body is destroyed it will use homing missiles along with the bullet spread and a laser in the harder difficulties.