You have a variety of weapons at your disposal as high tech as drones and satellite weapons system. You want explosions? Don't worry, your favorite rocket launcher and mines are still there for you. This game is not just a mindless shooting game, although you can do that, you have missions or objectives to meet if you want to feel a real futuristic villain that has a cause. Anyways, you're not here for all this ranting of mine about the game, you are here for the codes! This game is good, but sometimes we could use some MM2099A.D cheat codes like those listed below to make it even a better experience.
FACTORY - Spawns you in the factory.
CITY - Spawns you in the city.
ENROLL - Enters a mode where you fight against the military.
SPEED - Faster Speedster
TINY - Makes your character really small.
NOMAN - This will make the universe empty of living targets.
SATELLITE - This code unlocks the most powerful weapon: the killer satellite.
SPACE - Spawns your character in space.
The code above is to be typed in the extras menu that can be found at the game's home screen. If you don't know what I am talking about, refer to the Mass Mayhem 2099 A.D. cheats demonstration below.