Super Dropzone: Intergalactic Rescue Mission is a sequel to Archer MacLean's Dropzone . The game takes place ten years after the events of the original game. A team of humans went on an expedition to Jupiter's moon Io in search for valuable minerals, but were attacked by an alien race. Now they have established bases on three more of Jupiter's moons - Callisto, Ganymede, and Europa. The alien threat is still real, and they need protection.
The gameplay is similar to the original Dropzone , with some new weapons and end-of-level boss fights added in. The player controls a spaceman with a jetpack, able to fly in all directions above the moon surface while killing waves of aliens. At the same time, the player must protect ten people assigned to the moon by taking them to the dropzone landing pad.
The action takes place on the moons mentioned above as well as on Jupiter itself. In each level, the player must defeat a planet guardian - a final boss fight that requires hitting their glowing green nerve centre. Each wave starts with all remaining humans being beamed up by a leader enemy and can only be released by defeating it.