Your One must Fall: 2097 Cheats

Advanced Options
On the first screen (The one with the 1,2 player mode, configuration, gameplay ect) hold down the keys 2 0 9 7 at the same time for a few seconds. Go to the gameplay screen and there should be an advanced options screen.
Cheat: Alter Pilot Stats
On the Pilot Select Screen, place the cursor over all the pilots. Then place the cursor over your desired pilot. Hold the kick button. Notice that the green bars that show how much stats has changed from dark green to light green. Use the arrow keys to change the stats while holding down kick. Your stats' total must be the same as before. Note that Shirro has slightly less stat points than the other pilots, while Milano, Christian, and Ibrahim have slightly more.
Cheat: Increase Scrap Metal Falling From a Hit
During fighting, hold done B+I+G+#, where # is a number from 0-9. This will alter the amount of scrap metal that falls from a hit. You can make a ton of scrap fall with B+I+G+9, or reduce the amount of scrap to near zero with B+I+G+0. To reset it, press B+I+G+1.
Color Change Keys
In one or two player mode pick your pilot. At the robot screen select the robot you want. Don't press enter yet. By pressing the 1, 2, and 3 keys you will be able to change the colors of your robot.
Deadly difficulty level
To get the Deadly difficulty level, highlight the difficulty option and keep trying to get past the hardest difficulty (KEEP PRESSING THE RIGHT ARROW KEY).
Easy Win with Shadow
Buy or choose the robot Shadow. When you've stunned your enemy, quickly do the shadow grab (Shadow's shadow holds opponent from behind). Now hit your enemy however you wish and when they get back up they will be stunned again. Repeat this process for an easy and profitable victory.
Heavy Metal
At the title screen, type REIN. Whenever you hit someone scraps of metal start falling from the sky.
Hint: Major Kreissack First in Single Player
Play as Nova. On the screen before you fight (the one with the quotes), press esc to return to the robot screen. You will still be Nova, but the robot will not show because of its sheer size. Now press enter to go back to the quote screen. You will fight Major Kreissack first. (Note: If you beat Kreissack it does not mean you beat the game. You just fight him first, then the other challengers after him.)
Play as Nova
To play as Nova in 1 or 2 player mode, choose a pilot then at the robot selection screen press F, F, F, D, B, B, U, B, U, Dx11, F+P.
Pyro's Moves
Here are three of Pyro's best moves.

Fire Spin    Down + Punch
Jet Swoop    Up, Down + Kick
Thrust       Toward + Punch, Toward + Punch

To do his Air Grab, jump then press Down, Down-Forward, Forward and Punch.
Thorn's Special
To perform the Spike Charge, press Forward, Forward, Punch.
Ultimate difficulty level
To get the Ultimate difficulty level open up Deadly and while holding down O,M, and F, press the right arrow.