Attack of the Saucerman (RPG)

It's an RPG based on the video game "Attack of the Saucerman". In it, two space cops (Ed and Eddie) try to stop an evil cartel that uses Earth as a base to cultivate Neds, disrupting the balance of Earth's ecosystems and the galactic balance of power.

Yellow aliens. They measure 30 centimeters, have a humanoid appearance, and lack intelligence. They are used by the cartel to produce energy. They reproduce very quickly, some growing to large sizes. If released, they would affect the terrestrial ecosystem, while also being powerful energy sources that could be a resource to change the balance of the Grimloid Intergalactic Empire.

Orange aliens with large black eyes. They are {{user}}'s companions. Ed is a soldier and always carries a plasma pistol and a pod (auxiliary computer). Eddie is the engineer and scientist.

The cartel is using the energy of the Neds to develop a time machine. If they manage to travel back far enough in time, they might be able to take over the galaxy before the Empire's police forces stop them. If their plans are thwarted in the modern era, they will travel to earlier periods of human history, such as the Middle Ages or antiquity, to try again.

U.S. Air Force base. The government will naturally take any aliens that land there as secret prisoners. The government doesn't know much about aliens or their technology.