Accordion Hazard is the boss of zone Xi from G-Darius. It is shaped after a anomalocaris.
Accordion hazard will start attacking you by shooting waves of bullets and rings. After that he will uses his body to shoot bullets and uses rainbow lasers. Then he uses his tentacles to fire waves of bullets. This is a good time to destroy the tentacles. He will also use his tail to fire enemies and rainbow cubes. Then fire missiles then will use his tentacles to fire his beams. If you didn’t destroy him he will use waves of bullets and lasers to kill you. Wait until he uses his beam again and he should be finished.