The Invaders are the aliens that appear in the entire Space Invaders series. There is 3 types of invaders, which all have characteristics of aquatic animals:
- Small Invader - Resembles a Squid.
- Medium Invader - Resembles an Aquatic Crab.
- Large Invader - Resembles a Jellyfish.
The Invaders have very simple appearances. Having eyes and a few appendages.
The Invaders will move horizontally untill they reach a side of the screen, move down, and move horizontally in the opposite direction. They shoot projectiles that destroy your ship and barriers that vary:
- A simple line that puts a small hole in a barrier
- A lightning bolt that goes in a zig-zag and does more damage in the barriers.
The Invaders themselves can also destroy the barriers very quickly when they are level with them.
- The Invaders where originally ment to be soldiers. But where replaced, probably to avoid any controversial problems.