Game Description: Defender II is a vertically scrolling shooter where players control a spaceship tasked with protecting humanoids on a planet's surface from alien invaders. The game features intense action, where players must shoot down enemy ships, avoid obstacles, and rescue captured humanoids to score points. The game introduces new enemy types and hazards while offering power-ups to enhance the player's weapons. The goal is to survive each wave, defend the humanoids, and prevent the alien forces from taking over.