The original Japanese version was set in the 27th century. In 263 1 year, a mysterious meteorite fell on the imaginary island Garuga Group near New Zealand. Two years later, in 2633, the federal government of the earth learned that the armed group "Red Falcon" had established a military base near the meteorite falling place, and planned to use the aliens in the meteorite to develop weapons to destroy mankind. Therefore, the Earth Federal Marine Corps sent Private Bill Razer (ビル? ラィザー Bill Rize, 1P) and Lance Bean (ランス? ビーンンンンンン Lanspin, 2P) Destroy the "Red Falcon" and aliens. The logo of the red falcon is displayed in the game as a tool to carry enhanced weapons.
In the American version of the story, the time is changed to the present and the place is changed to the Mayan temple in South America. The time when the meteorite fell was changed to 30 years ago, and the nickname of the protagonist was changed to mad dog and scorpion.
The story of the version released in Europe (called Probotector) is basically the same as that of the Japanese version, except that the protagonist and some enemies are replaced by robots.
1P (blue): Bill Razer (ビル? ラィザー Bill Rize)
2P (red): Lance Bean (ランス? ビーンンンンンンンンン)
Have fun with LZ-